hevc: a much faster implementation of intra prediction (up to 1s on
haswell 2.6GHz on basket ball drive all intra qp 27)(cherry picked from commit 5de9739176f0eb4c205e80a91628a0196c9924b2)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
hevc/intrapred: fix indent(cherry picked from commit ab167f3158cf37bd679bda28566170e2c3691686)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
hevc: fixing code indenting in hevcpred(cherry picked from commit 28a5916845928de2951013b5398465573b181925)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>