Fixing this avoids the theoretical possibility of dereferencing a NULL pointer.

Experiments did show that the time sync is less stable in terrestrial mode if the integral part of the PI controller is used.
So set it to 0.0 by default. For NTN LEO use case we can still use it by providing the command line parameter --time-sync-I 0.2 .
fixes #846

- Update builder dockerfiles to build Flexric for E2 SM
- Update target dockerfiles to copy E2 SM

	- correctly scale REs. Some REs have higher power during PDSCH RE-Mapping which is corrected.
	- Closes: Issue 811

- Add Jenkinsfile, triggering Colosseum test run
- Add test scripts that interact with Colosseum running

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

trigger RA DL or UL data arrival during RRC_CONNECTED when UL synchronisation status is non-synchronised