Update .editorconfig to support *.csproj

We need to change CSPROJ Files when we add or remove dependencies, the .editorconfig should ensure that we have these files remain consistent

Upgraded NUnit3TestAdapterInstall

These items were missed on PR #749; this would have caused the VSIX Install package to Fail with a missing assembly.

Formatted All Existing CSPROJ Files

.editorconfig

@@ -5,6 +5,10 @@ root = true
 indent_style = space
 indent_size = 4
 
+[*.csproj]
+indent_style = space
+indent_size = 2
+
 [*.props]
 indent_style = space
 indent_size = 2

src/NUnitTestAdapter/NUnit.TestAdapter.csproj

@@ -4,7 +4,8 @@
     <AssemblyName>NUnit3.TestAdapter</AssemblyName>
     <!--<AssemblyName>NUnit3.TestAdapterDebug</AssemblyName>-->
     <RootNamespace>NUnit.VisualStudio.TestAdapter</RootNamespace>
-    <!--<TargetFramework>netcoreapp2.1</TargetFramework>--><!-- For testing and debugging-->
+    <!--<TargetFramework>netcoreapp2.1</TargetFramework>-->
+    <!-- For testing and debugging-->
     <TargetFrameworks>net35;netcoreapp2.1</TargetFrameworks>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <SourceLinkOriginUrl>https://github.com/nunit/nunit3-vs-adapter</SourceLinkOriginUrl>

src/NUnitTestAdapterTests/NUnit.TestAdapter.Tests.csproj

@@ -5,7 +5,8 @@
     <RootNamespace>NUnit.VisualStudio.TestAdapter.Tests</RootNamespace>
     <AssemblyName>NUnit.VisualStudio.TestAdapter.Tests</AssemblyName>
     <TargetFrameworks>net46;netcoreapp2.1</TargetFrameworks>
-    <!--<TargetFrameworks>netcoreapp2.1</TargetFrameworks>-->     <!-- For testing and debugging-->
+    <!--<TargetFrameworks>netcoreapp2.1</TargetFrameworks>-->
+    <!-- For testing and debugging-->
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <GenerateBindingRedirectsOutputType>true</GenerateBindingRedirectsOutputType>
   </PropertyGroup>