cmake DirectFB examples

AtomicGameEngine/AtomicGameEngine Source/ThirdParty/SDL/cmake/sdlchecks.cmake :700 

find_package (DirectFB 1.0.0 QUIET)

urho3d/urho3d Source/ThirdParty/SDL/cmake/sdlchecks.cmake :670 

find_package (DirectFB 1.0.0)