library/DIAMETER_Emulation: implement 'raw' mode of operation

This patch implements a new mode of operation, which allows to
have direct communication between the emulation component and
the other component connected via the 'DIAMETER_UNIT' port.
This eliminates the need to have dedicated components for each
IMSI, what is not necessarily needed in some specific cases.

Change-Id: I52e22ac70cc85be5b0436b68c77356aabc4f05e1
Related: SYS#5602
3 files changed