implement rrc list module, declair in rrc_inst and initialization, finish part of l12 FAPI messages, DCI0, DCI1, DCI2 and UCI, part of DCI_IND messages

- Create task for GAB_APP and GAN_RRC
- Create the NR FAPI for P5 interface
- *It could be build, but still have a lot of warning need to maintain

Merge branch 'nr_initialsync' of https://gitlab.eurecom.fr/oai/openairinterface5g into nr_initialsync

Merge branch 'nr_initialsync' of https://gitlab.eurecom.fr/oai/openairinterface5g into nr_initialsync

2.NR RRC do_SERVINGCELLCONFIGCOMMON for all of common config. will be transmit to lower layer by rrc_mac_config_req_gNB"

Merge branch 'develop-uedirectorysplit' into nr_initialsync

Merge branch 'nr_initialsync' of https://gitlab.eurecom.fr/oai/openairinterface5g into nr_initialsync

Merge branch 'nr-rrc-additions' of https://gitlab.eurecom.fr/oai/openairinterface5g into nr-rrc-additions