Add support for call-scoped marshaled objects

[AArnott]

Per the protocol: https://github.com/microsoft/vs-streamjsonrpc/blob/main/doc/general_marshaled_objects.md#protocol

Can we replace this 'not supported' scenario with working code?

vs-streamjsonrpc/src/StreamJsonRpc/Reflection/MessageFormatterRpcMarshaledContextTracker.cs

Lines 266 to 269 in d6f369c

	if (token.Value.Lifetime == MarshalLifetime.Call)
	{
	throw new NotSupportedException("Receiving marshaled objects scoped to the lifetime of a single RPC request is not yet supported.");
	}