Try 1xUE + 3xgNB scenario for UERANSIM

[pirog-spb]

Acceptance criteria:

• [ ] Research is it possible to connect UE to more than one gNB
• [ ] If it possible, create deployment
• [ ] Explore how to emulate RSSI changes sent from UE

[pirog-spb]

ueransim uecfg.yaml

# List of gNB IP addresses for Radio Link Simulation
gnbSearchList:
  - 127.0.0.1

NB don't forget to modify gNB ID in gnbcfg.yaml - should be unique for each gNB