WASM benchmark uses WebAssembly SDK and supports CoreClr runtime

[ilonatommy]

Should be merged together with dotnet/BenchmarkDotNet#2998.

[maraf]

We should migrate away from using test-main.js in this repository. That file is intended for unit tests in runtime repository.
Instead let's introduce a new file, in BDN, that will be tailored for running MicroBenchmarks.

Some of the configurations from this repository should probably be part of the BDN template as well

• Generating V8 script. Are we still using it to run benchmarks?

  performance/src/benchmarks/micro/MicroBenchmarks.Wasm.props

  Line 3 in f812c96

  <WasmGenerateRunV8Script>true</WasmGenerateRunV8Script>

• PublishTrimmed=true is default for wasm

  performance/src/benchmarks/micro/MicroBenchmarks.Wasm.targets

  Line 11 in f812c96

  <PublishTrimmed>true</PublishTrimmed>

• MainJS validation

  performance/src/benchmarks/micro/MicroBenchmarks.Wasm.targets

  Lines 28 to 30 in f812c96

  	<Target Name="Validate" BeforeTargets="Build">
  	<Error Text="Cannot find WasmMainJSPath: $(WasmMainJSPath)" Condition="'$(WasmMainJSPath)' == '' or !Exists('$(WasmMainJSPath)')" />
  	</Target>

Are these VFS items applied correctly

performance/src/benchmarks/micro/MicroBenchmarks.Wasm.targets

Line 24 in f812c96

<WasmFilesToIncludeInFileSystem Include="@(_LibrariesFile)" TargetPath="libraries\%(RecursiveDir)%(FileName)%(Extension)" />

?

[ilonatommy]

/ba-g failures not connected

[ilonatommy]

/ba-g failures not connected