Move AbstractInterpreter:: functions into abstractInterpreter.cpp/hpp abstractInterpreter_<proc>.cpp

Move TemplateInterpreterGenerator:: functions in to templateInterpreterGenerator_<proc>.cpp files

templateInterpreter_<proc>.cpp files had AbstractInterpreter functions.

Leave interpreter.hpp and interpreter.cpp to define InterpreterCodelet and the typedef:

The class Interpreter is a typedef to TemplateInterpreter OR CppInterpreter so interpreter has no cpu specific functions and interpreter_<proc>.cpp functions should be moved and the file should be removed.