Define JVET_AE0057_MTT_ET is placed at the appropriate location in Typedef.h
The Luma channel test condition is updated EncCu.cpp
The threshold value lower range is clipped to 0 instead of allowing it to take negative values.
JVET document number information is removed

# Conflicts:
#	source/Lib/CommonLib/TypeDef.h

The default values of sps_chroma_horizontal_collocated_flag and
sps_chroma_vertical_collocated_flag are modified to take on values according to
the specified chroma location type. If no chroma location type is specified,
the default values of the flags are as prior to this commit.