fixed encapsulation in previous commit, corrected some conditions in previous commit, replaced remaining tabs with spaces, corrected some indentations

- remove alternative code path for HM_EMT_NSST_AS_IN_JEM
- remove code in DMVR_JVET_LOW_LATENCY_K0217 (was not defined)

Part 1: change definition of QG, by JVET_L0362_QG_FIX
Part 2: fix encoder-side cu coding info reusing fast algorithm (i.e., reuse cu info when having the same neighbor and the same qp), by JVET_L0362_QG_FIX_CU_REUSE

Fix ticket #103 on MV rounding issue during AMVP candidates generation. Patch provided by ruoyang.yu@ericsson.com

add corresponding tool macros for CPR code, to prevent compiling errors when some tools are disabled

Fix provided by zhi.a.zhang@ericsson.com
Fixes #100

code optimization of triangle weighting process