psyrd: use zero stride in psyCost C reference, minor optimization
sei: repair decoded picture hash SEI
sei: add m_ prefix to members of SEIDecodedPictureHash for consistency
sei: allow SEI classes to implement write() directly to avoid two-pass encode
writer: xConvertToUInt did not need to be a class member
pic: better name for picture timing SEI member
sei: remove unused RESERVED hash method, avoid compiler warnings
pic: move timing structures to RateControlEntry

This saves a bit of memory, since this data only needs to exist when the picture
is being encoded.
pic: move SSIM, PSNR and hash to frame encoder

This data only needs to exist when the picture is being encoded. This changes
the SSIM scores slightly, even though the bitstream and recon does not change,
because it is resetting the SSIM sum and counter each frame.  When these fields
were on the TComPic, they were never cleared.
pic: move m_elapsedCompressTime and m_frameTime to frame encoder

This data only needs to exist when the picture is being encoded
sym: do not return pointer reference from getCU()
TComDataCU: remove hungarian prefixes from CU vars
frameencoder: remove unused bitcounter
frameencoder: replace m_cfg with m_param pointer, use m_top for leftovers
framefilter: replace top pointer with param pointer
TEncSearch: nits
TEncSearch: keep param pointer instead of top encoder pointer

This required cacheing some top encoder fields in TEncSearch
pic: remove unread m_bUsedByCurr
pic: remove unread m_bCheckLTMSB
pic: improve comments