The SSB nFAPI message is only sent every 8 frames, and automatically
repeated by the PHY layer in between. This commit sets the vrb_map
structure in those frames in between nFAPI so that the scheduler does
not schedule on such resources.

Creation of fill_default_coresetZero() and fill_default_searchSpaceZero(). Resource allocation and transmission of the DCI of SIB1. Partial implementation of the reception of the DCI of SIB1.

Get type0_PDCCH_CSS_config parameters at the gNB. SIB1 initialization has been added at SI initialization. SIB1 was transmitted with static parameters.

MIB NR: pdcch_ConfigSIB1 selection and fill using the configuration file, and using a dynamic method.