OAI is riddled with boolean_t, FALSE, TRUE, etc. This makes no sense, as there is a standard bool type, and could lead to nasty bugs if a definition of a bool is non-standard (0 == false, true == !false). This commit removes all non-standard bools in the whole project.
####################################### WHAT IS IMPLEMENTED: ####################################### All RLC specification 36.322 v9.3.0 concerning UM mode, except: The segmentation and the reception of PDU with a sequence number length of 5 bits. ####################################### KNOWN BUGS AND LIMITATION: #######################################