[browser] Integrate DevServer into WasmAppHost

[maraf]

• Integrate (copy) Blazor DevServer into WasmAppHost
  • DevServer origins
    • Copied from Blazor DevServer without any change
      • ComponentsWebAssemblyApplicationBuilderExtensions.cs
      • ContentEncodingNegotiator.cs
      • WebAssemblyNetDebugProxyAppBuilderExtensions.cs
    • DevServer.cs is mix between WebServer and asptnetcore DevServer/Program.cs
    • DevServerStartup.cs mix between WebServerStartup and asptnetcore DevServer/Startup.cs
    • DevServerOptions.cs is inspired by WebServerOptions
    • DebugProxyLauncher.cs changed folder where it expects debug proxy
  • The WasmAppHost still remains in workload, because of the console template
  • The WasmAppHost is also included in the Wasm SDK pack for running without workload from Wasm SDK
  • If we finish the console template in .NET 8, we can remove WasmAppHost from the workload
• The BrowserHost switches between WebServer and DevServer based on static web assets manifest presence
  • We probably could remove WebServer later
  • The solution still uses runtime config
• Make HTMLPath optional
• Set run parameters for Wasm SDK
  • It's in the Browser.targets because that is the topmost place where OutputPath is correctly set. Unfortunatelly it's after the default run parameters are set. So it must override it
  • It uses _WebAssemblyUserRunParameters to preserve user defined values. The property will be set in SDK dotnet/sdk@569f220
  • It checks for "blazor-devserver.dll" to preserve Blazor setting. We could use different check once the UsingMicrosoftNETSdkBlazorWebAssembly is removed from Wasm SDK
• Until resolved, TestAppScenarios pass GenerateRuntimeConfigurationFiles=true as command line argument to override Microsoft.NET.Sdk.WebAssembly.Browser.targets#L64
  
• Remove GenerateRuntimeConfigurationFiles=false from Wasm SDK, since the WasmAppHost needs it and Blazor SDK Move GenerateRuntimeConfigurationFiles=false back to Blazor SDK from Wasm SDK sdk#34177 change already flown to installer
• DebugProxy tested manually
• Tested that is doesn't interfere with Blazor's DevServer from nuget package

Contributes to #70762

[ghost]

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Issue Details

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TBD

Author:	maraf
Assignees:	maraf
Labels:	arch-wasm, area-Host, os-browser
Milestone:	8.0.0

[radical]

Looks great!