simplified rgb/depth packet processor api; async processing is now implemented in a templated decorator class
implemented bilateral filter on differential a/b images; really slow
Merge branch 'ir_iso_transfer' into hexdump

Conflicts:
	examples/protonect/Protonect.cpp
	examples/protonect/src/cpu_depth_packet_processor.cpp
Merge branch 'hexdump' into intrinsics