Resolve "Remove deprecated Message classes"
This MR removes following files:
- Message/CommMPI.cpp
- Message/CommMPI.h
- Message/Communicate.cpp
- Message/Communicate.h
- Message/Formatter.cpp
- Message/Formatter.h
- Message/Message.h
- Message/Message.hpp
- Message/MessageFunctions.cpp
Closes #44 (closed)
Edited by frey_m