Previously there were multiple definitions of some common GSM
constants in different modules. Let's share them.
Change-Id: Id6cdfbc6e8688755a0df7e44daa512c9afa7dad2
This change introduces a new tool named 'burst_gen.py'. One can
be used for sending GSM bursts either to L1 (OsmoBTS or OsmocomBB)
or to TRX (OsmoTRX and GR-GSM TRX). Currently it is only possible
to send random bursts of different types: NB, FB, SB, AB.
Change-Id: Ie14281222d29536b8690517e57af2a1007fcbc91
Vadim Yanitskiy