Merge MPA additions into main branch
This merge is to incorporate the middleware portion of the MPA software into the ph2_ACF framework using an analogous implementation to what is done for the cbc. Essentially, this is encapsulated in HWInterface/MPAInterface.cc and HWInterface/MPAGlibFWInterface.cc. Additionally implemented are MPA specific objects HWDescription/MPA.cc, Utils/MPAEvent.cc, and the MPAGLIB board type.
These are functionally combined into a test program in src/rtest.cc which performs daq loops and saves the output. This is to be used as a first template for the usercode daq developers.