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 +0...