added scheduled selfchecks with all available project imports to CI #12

Job	Run time
build	37s
selfcheck (cppcheck.cppcheck)	17m 20s
selfcheck (gui/gui.cppcheck)	35s
selfcheck (cppcheck.sln)	7m 46s
selfcheck (cmake.output/compile_commands.json)	25s
	26m 43s

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