[wasm] Bundle net472 dependencies for MonoAOTCompiler task (#67757)

[wasm] Bundle net472 dependencies for MonoAOTCompiler task (#67757)

.. same as what we do for WasmAppBuilder, and MonoTargets.

Without this, it would work if msbuild/VS happened to load the expected
System.Reflection.Metadata assembly before loading the task. But break
when it didn't. And that breakage happens with 7.0*p3 with VS 17.2 .

msbuild, and VS break with:
```
The "MonoAOTCompiler" task failed unexpectedly.System.IO.FileNotFoundException: Could not load file or assembly 'System.Reflection.Metadata, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies.
    The system cannot find the file specified.File name: 'System.Reflection.Metadata, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
        at MonoAOTCompiler.FilterAssemblies(IEnumerable`1 assemblies)
        at MonoAOTCompiler.ExecuteInternal()
        at MonoAOTCompiler.Execute()
        at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
        at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__26.MoveNext()

    WRN: Assembly binding logging is turned OFF.To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.Note: There is some performance penalty associ ated with assembly bind failure logging.To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
```

These are the files bundled for net472 now:

```
tasks/net472/Microsoft.Bcl.AsyncInterfaces.dll
tasks/net472/Microsoft.Build.dll
tasks/net472/Microsoft.Build.Framework.dll
tasks/net472/Microsoft.Build.Tasks.Core.dll
tasks/net472/Microsoft.Build.Utilities.Core.dll
tasks/net472/Microsoft.NET.StringTools.dll
tasks/net472/Microsoft.VisualStudio.Setup.Configuration.Interop.dll
tasks/net472/MonoAOTCompiler.dll
tasks/net472/MonoAOTCompiler.dll.config
tasks/net472/System.Buffers.dll
tasks/net472/System.Collections.Immutable.dll
tasks/net472/System.Configuration.ConfigurationManager.dll
tasks/net472/System.Memory.dll
tasks/net472/System.Numerics.Vectors.dll
tasks/net472/System.Reflection.Metadata.dll
tasks/net472/System.Resources.Extensions.dll
tasks/net472/System.Runtime.CompilerServices.Unsafe.dll
tasks/net472/System.Security.AccessControl.dll
tasks/net472/System.Security.Permissions.dll
tasks/net472/System.Security.Principal.Windows.dll
tasks/net472/System.Text.Encodings.Web.dll
tasks/net472/System.Text.Json.dll
tasks/net472/System.Threading.Tasks.Dataflow.dll
tasks/net472/System.Threading.Tasks.Extensions.dll
tasks/net472/System.ValueTuple.dll
```

Issue: https://devdiv.visualstudio.com/DevDiv/_workitems/edit/1520454

Co-authored-by: Ankit Jain <radical@gmail.com>