This should fix and unify finding GLFW3 for all desktop archs.
Instead of using glfw3 on each required configuration, use it centralized way.
Add our prebuilt location to search paths, so FindGLFW3.cmake can find it also.
Merge pull request #9115 from vovkasm/win32-audioengine-mingw-fix

Fix compile errors with recent mingw.
Merge pull request #9121 from vovkasm/cmake-fix-glfw3-find

This should fix and unify finding GLFW3 for all desktop archs.