Clean-up of 2 parts in the ISP code that are redundant. The changes do not alter the performance in any way, i.e., the results are exactly the same.

1) In the full RD intra mode tests loop (estIntraPredLumaQT) there is the following condition:
    if ( uiOrgMode <= DC_IDX ) -> do X; else-> do X.
Since X is the same in both cases, the redundant code has been removed.

2) In xRecurIntraCodingLumaQT there is the threshold definition

double threshold = nSubPartitions == 2 ? 0.95 : subTuCounter == 0 ? 0.67 : subTuCounter == 1 ? 0.83 : 0.91;

Since subTuCounter can never be 0 (it is at least 1) at the time this expression is evaluated, the code has been simplified in the following way:

double threshold = nSubPartitions == 2 ? 0.95 : subTuCounter == 1 ? 0.83 : 0.91;

- all elements of SPSNext are moved into SPS
- syntax elements of SPS are sorted according to draft (as far as possible)
- comments were added where software and draft diverge

Remove unused contexts and split intra mode contexts into luma and
chroma sets to align with text description

There is a conflict with JVET_M0427_INLOOP_RESHAPER that is triggering a debug assertion that checks that the width is not 1.

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

switched default value for CodingStructure::initStructData::QP from -1 to MAX_INT (signalling that the QP value for the CS should not be set)

    to w×h >= 64 luma samples

    See merge request jvet/VVCSoftware_VTM!34

Squashed commit of the following:

commit fb98d9c6de449d04646b4c9ad561114c9561442a
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Wed Oct 31 08:18:02 2018 +0800

    fix the variables for L0100 as suggested

commit 552f201ac2e00012a0657eee4d1a38a17bbd2306
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Wed Oct 31 00:52:58 2018 +0800

    fix the interaction

commit 3f0f36f4068399f2b5c3dbefe5fcb1bbe2b1344d
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Tue Oct 30 12:17:43 2018 +0800

    fix distroy buffer size for L0100

commit 649dd1d2b1c4aa5da783eb51c8633b4c47d312ea
Merge: 859c574 5c46b9be
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Tue Oct 30 10:19:56 2018 +0800

    update the codebase

commit 859c574bcacfac4cf0f099402a69341667981a93
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Tue Oct 30 10:14:03 2018 +0800

    update the codebase

commit 694008b474f2dd924c567664e160637912e8e87d
Merge: 0ac1683 e9bf7ed5
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Mon Oct 29 12:57:36 2018 +0800

    update the codebase

commit 0ac1683267e5e17048843ea409275bc102290c1a
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Mon Oct 29 11:23:51 2018 +0800

    modify MHIntra as suggested

commit a375e85c06a6e353562fea4ac89e44748f536c41
Author: Shelly Chiang <chiangshelly@yahoo.com.tw>
Date:   Thu Oct 25 11:48:44 2018 +0800

    merge MHIntra into VTM

clean up useless array and its related code; resolve the merge conflict; include MDLM modes in SATD checking.