Added includes required for compilation on Windows.
removed const declarations as we set warnings in the decoder context
Merge branch 'master' of https://github.com/strukturag/libde265
remove intra_split_flag from CB_info
remove rqt_root_cbf from CB_info
remove split_cu_flag from CB_info
move cu_skip_flag to image class
increase UVLC length limit
move PredMode to image data
move log2CbSize to image data