Implement Malta2TreeWriterModule

The Malta2TreeWriterModule should save the output from the AllPix2 simulation in the same format as the telescope software. This will allow the same reconstruction/analysis software to be used for the simulation as for real data.

The priority for this task is high, as it is the fastest way to a plot that can be easily compared with existing data. The work towards this has already started via:

• telescope_sim.conf allpix2 steering file that setups a copy of the telescope. A linear field is used for now.
• Malta2TreeWriterModule skeleton that implements an empty Malta2Tree TTree.

Examples on getting the simulation information from allpix2 are either:

• DetectorHistogrammer for a "detector specific" module.
• ROOTObjectWriterModule for a "unique" (global) module.

The chose of which to follow depends on if Malta2 DAQ software stores all planes in a single TTree or in multiple.

Information on the Malta2Tree format.