New DMR Test Cases developed:

TP/oneM2M/CSE/DMR/CRE/001_CIN/CNT
TP/oneM2M/CSE/DMR/CRE/020
TP/oneM2M/CSE/DMR/CRE/021
TP/oneM2M/CSE/DMR/DEL/001_CIN
TP/oneM2M/CSE/DMR/DEL/008
TP/oneM2M/CSE/DMR/DEL/010
TP/oneM2M/CSE/DMR/RET/001_CIN
TP/oneM2M/CSE/DMR/RET/011
TP/oneM2M/CSE/DMR/RET/012
TP/oneM2M/CSE/DMR/RET/017_LCP
TP/oneM2M/CSE/DMR/RET/017_MGC
TP/oneM2M/CSE/DMR/RET/017_NOD
TP/oneM2M/CSE/DMR/RET/017_STCL
TP/oneM2M/CSE/DMR/RET/017_STCG
TP/oneM2M/CSE/DMR/UPD/014_ACP/ET
TP/oneM2M/CSE/DMR/UPD/014_ACP/LBL
TP/oneM2M/CSE/DMR/UPD/014_ACP/PV
TP/oneM2M/CSE/DMR/UPD/014_ACP/PVS
TP/oneM2M/CSE/DMR/UPD/014_CNT/ACPI
TP/oneM2M/CSE/DMR/UPD/014_CNT/ET
TP/oneM2M/CSE/DMR/UPD/014_CNT/LBL
TP/oneM2M/CSE/DMR/UPD/014_CNT/MBS
TP/oneM2M/CSE/DMR/UPD/014_CNT/MIA
TP/oneM2M/CSE/DMR/UPD/014_CNT/MNI
TP/oneM2M/CSE/DMR/UPD/014_CNT/OR
TP/oneM2M/CSE/DMR/UPD/014_SUB/ACPI
TP/oneM2M/CSE/DMR/UPD/014_SUB/BN
TP/oneM2M/CSE/DMR/UPD/014_SUB/ENC
TP/oneM2M/CSE/DMR/UPD/014_SUB/ET
TP/oneM2M/CSE/DMR/UPD/014_SUB/EXC
TP/oneM2M/CSE/DMR/UPD/014_SUB/GPI
TP/oneM2M/CSE/DMR/UPD/014_SUB/LBL
TP/oneM2M/CSE/DMR/UPD/014_SUB/LN
TP/oneM2M/CSE/DMR/UPD/014_SUB/NCT
TP/oneM2M/CSE/DMR/UPD/014_SUB/NEC
TP/oneM2M/CSE/DMR/UPD/014_SUB/NFU
TP/oneM2M/CSE/DMR/UPD/014_SUB/NSP
TP/oneM2M/CSE/DMR/UPD/014_SUB/PN
TP/oneM2M/CSE/DMR/UPD/014_SUB/RL

Some other minor changes/fixes