ipfilter: remove unused weighted interpolation primitives
ipfilterharness: remove test harnesses for removed primitives
ipfilter: remove unused filterRow primitives
primitives: remove obsolete FilterConf enum
primitives: remove unused function decl
primitives: rename blockfil_s to blockfill_s_c
pixel: simplify sad_24 to make easier to maintain
pixel: simplify sad_32 to make it easier to maintain
pixel: simplify sad_x3_12 to make it easier to maintain
pixel: simplify sad_12 to make easier to maintain
pixel: simplify sad_x3_24 to make it easier to maintain
pixel: simplify sad_x3_32 to make it easier to maintain
pixel: simplify sad_x4_12 to make it easier to maintain
pixel: simplify sad_x4_24 to make it easier to maintain
pixel: simplify sad_x4_32 to make it easier to maintain
pixel: replace Residual4 vector class with intrinsic
pixel: replace getResidual8 vector class with intrinsic
pixel: move intrinsic getResidual4 and getResidual8 to pixel-sse3.cpp
pixel: fix spelling of blockfill functions, add calcresidual functions
pixel: wrap primitives in anononymous namespace (file static)