Add SAPMS+SAPRFC contribution from @gelim @_chipik

[gelim]

Hey,
this is the contribution used for our research on Gateway+Message Server "be trusted" attack presented at OPCDE2019 Dubai.

slides and videos

Main takeaways are:

• added the DPInfo[1-3] packets in SAPMS.py for handling specific MS ADM packets relaying Dispatcher/WP info : [1-3] because of tight SAP kernel version dependency.
• enhanced SAPRFC.py with mainly SAPCPIC* and SAPRFXPG* new packets

Those enhancements are used by PoC code like this and this

[martingalloar]

This is really good work, thank you very much for contributing it back to upstream @gelim and @chipik! I'll add some documentation and references to your work and the exploits repositories after the merge.