RDOQ : pass a parameter to temporarily disable RDOQ.

default value of parameter is true, that means RDOQ is not disabled. Outputs mustnot change in any rd levels.
update authors header
fix bug in chroma_p2s and testbench
asm code and test bench integration code for blockcopy_pp_c partitions
added C primitive for blockcopy_p_s and function pointer creation for new type
pixel.cpp, initialization of function pointer table for blockcopy_ps_c partitions
pixel.h, added asm function decleration for blockcopy_ps_c
corrected buffer name for chroma_copy_pp
pixelharness: shorten copy primitive names for consistency