Adding a base class for request params that exposes the progressToken #190

Job	Run time
build (ubuntu-latest, Debug)	2m 33s
build (ubuntu-latest, Release)	2m 51s
build (windows-latest, Release)	4m 58s
build (windows-latest, Debug)	5m 0s
build (macos-latest, Debug)	1m 50s
build (macos-latest, Release)	1m 54s
publish-coverage / publish-coverage	44s
	19m 50s

Provide feedback