- removed calls to the TDD UL/DL configuration common in FDD mode
- bugfix in the generation of prach info from index
- initial adaptation of gNB schedulers
- adapted PUCCH ack/nack scheduling by taking into account 6 slots min
  delay in FDD mode (to be integrated with latest development of PUCCH)
- made the use of nr_slots_per_frame more consistent

changes for initialBWP size different than Coreset0. Tested with 50 MHz 2x2 configuration, initialBWP with 133 PRBs.

Procedure fill_dmrs_mask is modified.
	- PDSCH Mapping Type B is supported
	- Modified according to sections 5.1.6.2 of Spec 38.214
	- Single and double symbol DMRS are handled in Type A and Type B

Mapping type according to the time domain allocation from DCI should be used to get the values of DMRS config
For sending sib1 - DCI FORMAT 1_0 will be used with SI_RNTI, UE should perform these actions
according to sections 5.1.6.2 of Spec 38.214

Additional DMRS set to pos2 in case of msg2 reception, msg3 transmission.

Mapping type B is added to RRC reconfig.
	- nr_dlsim updated to test typeA and typeB. Verified the changes.
	- RFSIM Validation of PDSCH Mapping TypeB  by changing timedomainallocation in configuration files.

It is sufficient to pass l_d directly to the function but considering future extension to mapping type B, this way makes more sense.