cmake ZMusic examples

ZDoom/Raze source/CMakeLists.txt :332 

find_package( ZMusic )

dpjudas/VkDoom CMakeLists.txt :199 

find_package( ZMusic )

glKarin/com.n0n3m4.diii4a Q3E/src/main/jni/gzdoom/libraries/ZMusic/samples/list_midi_devices/CMakeLists.txt :4 

find_package(ZMusic REQUIRED)