Procedures based on 38.213 ch.13 and ch.10, 38.211 ch.7.
 - Type0-PDCCH search space
 - Type0-PDCCH coreset

NR_LTE_UE_REUSE_LIB: set of files need to be update from LTE to NR version.

Add Type0-PDCCH search space & coreset right after decode MIB and storage corresponding parameters in L2.

clean code

MIB PDU decode complete.

deleted files not use

update author contact information