ayc

@thomasfsteeples I have written a CMake module along with a helper cmake file with function `munit_dicover_tests` that could be used to automatically discovering test case from any CMake test target...

I have incorporated some of the changes you suggested at commit arnavyc/portable-snippets@d98a23a8d4406ca16a3f8d7617647f130b2f51fb and arnavyc/portable-snippets@792825f533ae50772524aaca3201232ffb46d8ba.

See #40.