Add the commit identifier to the version printout

Currently it is not possible to identify the exact source code of the development/ non-release builds.

One solution is to include the commit identifier to the version printout for non-release builds. It would be good to print it in a separate line.

Example:

compiler -v 
TTCN-3 and ASN.1 Compiler for the TTCN-3 Test Executor
Version: 8.0.0
Build date: Jul 14 2021 09:04:20
Compiled with: GCC 7.5.0
Using OpenSSL 1.1.1  11 Sep 2018
Commit id: 935ba6f596

Copyright (c) 2000-2021 Ericsson Telecom AB

Or something similar.