Add ability to pass in manifest inputs into the "aspirate generate" command.

[pseudosma]

🚀 Feature Description

Some manifests require user input. If you run aspirate generate --non-interactive, the command will fail with this error:

── Handling Inputs ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
(!) Cannot obtain non-generated values for inputs in non-interactive mode. Inputs are required according to the manifest.
(1): Aspirate will now exit.

There should be a way to handle these manifests in non-interactive mode without needing to force an error.

🧰 Possible Solution

• Allow extra arguments in the aspirate generate command to be used as inputs for specific fields, for example the set flag could be used:
  --set Username=myUsername
  It would be on the user to figure out what fields they need to add, there just needs to be a mechanism to allow them to be set in non-interactive mode.

✔ Goals

• There should be a way to pre-define inputs for manifests that require inputs to be able to use non-interactive mode with those types of libraries.

💼 Business Case

Last week I began using the Aspire.Hosting.RabbitMQ library with my .Net Aspire app and I noticed that this cannot run in non-interactive mode because the manifest calls for inputs.

I've been using this command for CI/CD tools. My current workflow doesn't have the manifest.json file committed to the repo; it's just generated on-the-fly during the build + deployment:
aspirate generate --output-format helm --non-interactive --secret-password $SECRET_VALUE --with-dashboard --image-pull-policy IfNotPresent

I'd like to just be able to set the needed inputs upfront, so the values that Aspire.Hosting.RabbitMQ ask for can be handled by CI/CD tools.

For reference, this is the section of the manifest.json file associated to Aspire.Hosting.RabbitMQ. The username and password values are required :

    "Username": {
      "type": "parameter.v0",
      "value": "{Username.inputs.value}",
      "inputs": {
        "value": {
          "type": "string"
        }
      }
    },
    "Password": {
      "type": "parameter.v0",
      "value": "{Password.inputs.value}",
      "inputs": {
        "value": {
          "type": "string",
          "secret": true
        }
      }
    },
    "rabbitmq": {
      "type": "container.v0",
      "connectionString": "amqp://{Username.value}:{Password.value}@{rabbitmq.bindings.tcp.host}:{rabbitmq.bindings.tcp.port}",
      "image": "docker.io/library/rabbitmq:4.0-management",
      "volumes": [
        {
          "name": "MyApp.AppHost-rabbitmq-data",
          "target": "/var/lib/rabbitmq",
          "readOnly": false
        }
      ],
      "env": {
        "RABBITMQ_DEFAULT_USER": "{Username.value}",
        "RABBITMQ_DEFAULT_PASS": "{Password.value}"
      },