Use the camp platforms instead of MemorySpace

[corbett5]

https://github.com/LLNL/camp/blob/master/include/camp/resource/platform.hpp
https://github.com/LLNL/RAJA/blob/develop/include/RAJA/internal/get_platform.hpp
https://github.com/LLNL/RAJA/blob/develop/include/RAJA/util/camp_aliases.hpp

[corbett5]

Move bufferManipulation::HasMemberFunction_move into typeManipulation.hpp.