Android/WebGL Support (#15)

* feat: unity web req impl

* feat: null and length check for results

* feat: make form uploads with net.http only

* chore: message updated

* feat: arrays turned into list to prevent WebGL error

* feat: samples are updated

* feat: samples are updated

* fix: minor fixes

* feat: readme updated

* chore: version bumped

README.md

@@ -33,6 +33,13 @@ To do this, follow these steps:
     "organization": "org-...L7W"
 }
 ```
+
+You can also pass your API key into `OpenAIApi` ctor when creating an instance of it but again, this is not recommended!
+
+```csharp
+var openai = new OpenAIApi("sk-Me8...6yi");
+```
+
 **IMPORTANT:** Your API key is a secret. 
 Do not share it with others or expose it in any client-side code (e.g. browsers, apps). 
 If you are using OpenAI for production, make sure to run it on the server side, where your API key can be securely loaded from an environment variable or key management service.
@@ -56,18 +63,20 @@ private async void SendRequest()
 }
 ```
 
-You can also pass your API key into OpenAIApi ctor when creating an instance of it but again, this is not recommended!
-
-```csharp
-var openai = new OpenAIApi("sk-Me8...6yi");
-```
-
 ### Sample Projects
 This package includes two sample scenes that you can import via the Package Manager:
 
 - **ChatGPT sample:** A simple ChatGPT like chat example.
 - **DallE sample:** A DALL.E text to image generation example.
 
+### Known Issues
+- **Some Endpoints are not available in WebGL Project:** Some of the endpoints such as image edits, image variations, file and fine tune creations depend on multipart form uploads, 
+and UnityWebRequests with forms does not work as expected. For that reason C# Net.Http library is used however usage of the
+library is blocked in WebGL due to security reasons.
+
+- **Can't See the Image Result in WebGL Builds:** Due to CORS policy of OpenAI image storage in local WebGL builds you will get the generated image's URL however it will not be
+downloaded using UnityWebRequest until you run it out of localhost, on a server.
+
 ### Further Reading
 For more information on how to use the various request parameters, 
 please refer to the OpenAI documentation: https://beta.openai.com/docs/api-reference/introduction

Runtime/Configuration.cs

@@ -34,7 +34,7 @@ public Configuration(string apiKey = null, string organization = null)
                 }
                 else
                 {
-                    Debug.LogError($"auth.json does not exist. Please check https://github.com/srcnalt/OpenAI-Unity#saving-your-credentials");
+                    Debug.LogError("API Key is null and auth.json does not exist. Please check https://github.com/srcnalt/OpenAI-Unity#saving-your-credentials");
                 }
             }
             else

Runtime/DataTypes.cs

@@ -57,7 +57,7 @@ public struct ListModelsResponse: IResponse
     {
         public ApiError Error { get; set; }
         public string Object { get; set; }
-        public OpenAIModel[] Data { get; set; }
+        public List<OpenAIModel> Data { get; set; }
     }
 
     public class OpenAIModel
@@ -68,7 +68,7 @@ public class OpenAIModel
         public long Created { get; set; }
         public string Root { get; set; }
         public string Parent { get; set; }
-        public Dictionary<string, object>[] Permission { get; set; }
+        public List<Dictionary<string, object>> Permission { get; set; }
     }
 
     public class OpenAIModelResponse : OpenAIModel, IResponse
@@ -105,7 +105,7 @@ public struct CreateCompletionResponse: IResponse
         public string Object { get; set; }
         public long Created { get; set; }
         public string Model { get; set; }
-        public Choice[] Choices { get; set; }
+        public List<Choice> Choices { get; set; }
         public Usage Usage { get; set; }
     }
     #endregion
@@ -126,7 +126,7 @@ public struct CreateEditResponse: IResponse
         public ApiError Error { get; set; }
         public string Object { get; set; }
         public long Created { get; set; }
-        public Choice[] Choices { get; set; }
+        public List<Choice> Choices { get; set; }
         public Usage Usage { get; set; }
     }
     #endregion
@@ -161,7 +161,7 @@ public struct CreateImageResponse: IResponse
     {
         public ApiError Error { get; set; }
         public long Created { get; set; }
-        public ImageData[] Data { get; set; }
+        public List<ImageData> Data { get; set; }
     }
 
     public struct ImageData
@@ -183,15 +183,15 @@ public struct CreateEmbeddingsResponse: IResponse
     {
         public ApiError Error { get; set; }
         public string Object { get; set; }
-        public EmbeddingData[] Data;
+        public List<EmbeddingData> Data;
         public string Model { get; set; }
         public Usage Usage { get; set; }
     }
 
     public struct EmbeddingData
     {
         public string Object  { get; set; }
-        public float[] Embedding { get; set; }
+        public List<float> Embedding { get; set; }
         public int Index { get; set; }
     }
     #endregion
@@ -201,7 +201,7 @@ public struct ListFilesResponse: IResponse
     {
         public ApiError Error { get; set; }
         public string Object { get; set; }
-        public OpenAIFile[] Data { get; set; }
+        public List<OpenAIFile> Data { get; set; }
     }
 
     public struct DeleteResponse: IResponse
@@ -232,22 +232,22 @@ public class CreateFineTuneRequest
         public bool ComputeClassificationMetrics { get; set; } = false;
         public int? ClassificationNClasses { get; set; } = null;
         public string ClassificationPositiveClass { get; set; }
-        public float[] ClassificationBetas { get; set; }
+        public List<float> ClassificationBetas { get; set; }
         public string Suffix { get; set; }
     }
 
     public struct ListFineTunesResponse: IResponse
     {
         public ApiError Error { get; set; }
         public string Object { get; set; }
-        public FineTune[] Data { get; set; }
+        public List<FineTune> Data { get; set; }
     }
 
     public struct ListFineTuneEventsResponse: IResponse
     {
         public ApiError Error { get; set; }
         public string Object { get; set; }
-        public FineTuneEvent[] Data { get; set; }
+        public List<FineTuneEvent> Data { get; set; }
     }
 
     public class FineTune
@@ -261,10 +261,10 @@ public class FineTune
         public string OrganizationId { get; set; }
         public string Status { get; set; }
         public Dictionary<string, object> Hyperparams { get; set; }
-        public OpenAIFile[] TrainingFiles { get; set; }
-        public OpenAIFile[] ValidationFiles { get; set; }
-        public OpenAIFile[] ResultFiles { get; set; }
-        public FineTuneEvent[] Events { get; set; }
+        public List<OpenAIFile> TrainingFiles { get; set; }
+        public List<OpenAIFile> ValidationFiles { get; set; }
+        public List<OpenAIFile> ResultFiles { get; set; }
+        public List<FineTuneEvent> Events { get; set; }
     }
 
     public class FineTuneResponse : FineTune, IResponse
@@ -293,7 +293,7 @@ public struct CreateModerationResponse: IResponse
         public ApiError Error { get; set; }
         public string Id { get; set; }
         public string Model { get; set; }
-        public ModerationResult[] Results { get; set; }
+        public List<ModerationResult> Results { get; set; }
     }
 
     public struct ModerationResult