[csolution-rpc] Handle `GetDraftProjects` method #2329

Job	Run time
coverage	6m 38s
setup / config	3s
matrix_prep / matrix_prep	10s
unittest (windows-2022, windows, arm64, csolution.exe, always, false, false)	4m 21s
build-swig (macos-13, darwin, amd64, csolution, publicRepo, true, true)	5m 46s
build-swig (ubuntu-22.04, linux, amd64, csolution, always, true, true)	3m 57s
build-swig (windows-2022, windows, arm64, csolution.exe, always, false, false)	1m 9s
unittest (ubuntu-22.04, linux, arm64, csolution, always, false, false)	2m 54s
build (macos-14, darwin, arm64, csolution, publicRepo, false, false)	2m 23s
build-swig (macos-14, darwin, arm64, csolution, publicRepo, false, false)	29s
unittest (macos-13, darwin, amd64, csolution, publicRepo, true, true)	8m 6s
build-swig (ubuntu-22.04, linux, arm64, csolution, always, false, false)	20s
unittest (ubuntu-22.04, linux, amd64, csolution, always, true, true)	4m 29s
build (macos-13, darwin, amd64, csolution, publicRepo, true, true)	2m 51s
unittest (macos-14, darwin, arm64, csolution, publicRepo, false, false)	1m 51s
build (windows-2022, windows, arm64, csolution.exe, always, false, false)	4m 8s
build-swig (windows-2022, windows, amd64, csolution.exe, always, true, false)	5m 19s
unittest (windows-2022, windows, amd64, csolution.exe, always, true, false)	11m 20s
build (ubuntu-22.04, linux, arm64, csolution, always, false, false)	3m 34s
build (ubuntu-22.04, linux, amd64, csolution, always, true, true)	2m 33s
build (windows-2022, windows, amd64, csolution.exe, always, true, false)	5m 54s
Publish Tests Results	12s
release	-1s
	1h 18m 26s

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