TEncBinCABAC: remove hungarian prefixes
TEncCavlc: remove hungarian prefixes
WeightPredAnalysis: remove hungarian prefixes
global search and replace for common hungarian prefixed variables
TEncSearch: move variables closer to their use
TEncSearch: hoist setSourcePlane() to be called just once per frame
TEncSearch: remove unnecessary memsets
TEncSearch: simplify unidirectional search logic

There was a lot of extra code to check if an L0 pic was in the L1 list and was
already searched.  We do not copy our L0 pics into the L1 list so this isn't an
issue.
TEncSearch: rename refList -> list, refIdxTmp -> idx (more readable)
TEncSearch: remove unused variables
TComSlice: remove unused m_list1IdxToList0Idx and methods
TEncSearch: nits
TEncSearch: remove unused static MV arrays