[projmgr] Check cproject filename uniqueness #1155

Job	Run time
coverage	3m 47s
setup / config	1s
matrix_prep / matrix_prep	4s
build (macos-12, darwin, amd64, csolution, publicRepo, true, true)	3m 37s
build (macos-12, darwin, arm64, csolution, publicRepo, false, false)	2m 44s
build (ubuntu-22.04, linux, amd64, csolution, always, true, true)	2m 44s
build (ubuntu-22.04, linux, arm64, csolution, always, false, false)	3m 24s
build (windows-2019, windows, amd64, csolution.exe, always, true, false)	5m 25s
build (windows-2019, windows, arm64, csolution.exe, always, false, false)	6m 58s
build-swig (macos-12, darwin, amd64, csolution, publicRepo, true, true)	5m 12s
build-swig (macos-12, darwin, arm64, csolution, publicRepo, false, false)	4s
build-swig (ubuntu-22.04, linux, amd64, csolution, always, true, true)	3m 46s
build-swig (ubuntu-22.04, linux, arm64, csolution, always, false, false)	4s
build-swig (windows-2019, windows, amd64, csolution.exe, always, true, false)	7m 19s
build-swig (windows-2019, windows, arm64, csolution.exe, always, false, false)	5s
unittest (macos-12, darwin, amd64, csolution, publicRepo, true, true)	3m 57s
unittest (macos-12, darwin, arm64, csolution, publicRepo, false, false)	4m 46s
unittest (ubuntu-22.04, linux, amd64, csolution, always, true, true)	2m 51s
unittest (ubuntu-22.04, linux, arm64, csolution, always, false, false)	2m 48s
unittest (windows-2019, windows, amd64, csolution.exe, always, true, false)	7m 33s
unittest (windows-2019, windows, arm64, csolution.exe, always, false, false)	4m 47s
Publish Tests Results	2s
release	0s
	1h 11m 58s

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