testbench: allocate test harnesses on heap, for better valgrind coverage
inline simple functions
primitives: intra_pred[4][35] => intra_pred[35][4] (avoid *35)
search: cleanup and remove redundant variable in checkintra
search: remove redundant loacal variables in encodeResAndCalcRdSkipCU
search: simplify and remove redundant variables in getBestIntraModeChroma
param: do not allow VBV without WPP

VBV row restarts cannot function correctly without WPP (per-row CABAC starts)