Fix uGearsHandlersMess.pas changes lost in merge r1c02143bfe9c. This seems to only include the drill rocket fixes ( re0dd66b2e73b and r8db0c56f7e2f ) as well as the initial cake push ( r8786d4ac9e0b )

add_subdirectory(voices)

file(GLOB BaseSounds *.ogg)

install(FILES
    ${BaseSounds}
    DESTINATION ${SHAREPATH}Data/Sounds)