Create a PowerShell module manifest

[pellared]

We can create a PowerShell module manifest for the https://github.com/open-telemetry/opentelemetry-dotnet-instrumentation/blob/main/OpenTelemetry.DotNet.Auto.psm1 so that we can:

1. Add combability info (Destkop edition and 5.1 version?)
2. Add license and author info
3. Publish the module to https://www.powershellgallery.com/

See:

• https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_module_manifests
• https://learn.microsoft.com/en-us/powershell/scripting/dev-cross-plat/performance/module-authoring-considerations

[pjanotti]

Relevant comment from #2003: https://github.com/open-telemetry/opentelemetry-dotnet-instrumentation/issues/2003#issuecomment-1396716474