evpobr authored May 02, 2020 and Erik de Castro Lopo committed May 03, 2020

* Add more Git ignore patterns
* Fix Ogg dependency handling (closes #203)
* Remove unneeded compiler flag (closes #204)
* Fix Visual Studio DLL build error error C2491:
  'flac_internal_rename_utf8': definition of dllimport function not
  allowed (closes #205)
* Add alias targets
* Reduce number of CMake files
* Improve CMake intrinsics detection