Resolve "Remove deprecated field and utilitiy classes"
This MR removes following files/classes:
- Field/Assign.h
- Field/Assign.hpp
- Field/AssignDefs.h
- Field/AssignGeneralBF.hpp
- Field/AssignGeneralIBF.hpp
- Field/AssignTags.h
- Field/BareFieldIterator.h
- Field/BrickExpression.h
- Field/BrickExpression.hpp
- Field/BrickIterator.h
- Field/BrickIterator.hpp
- Field/CompressedBrickIterator.h
- Field/CompressedBrickIterator.hpp
- Field/Field.h
- Field/Field.hpp
- Field/FieldLoc.h
- Field/FieldSpec.h
- Field/IndexedBareField.h
- Field/IndexedBareField.hpp
- Field/IndexedField.h
- Field/ReductionLoc.h
- Field/ReductionLoc.hpp
- Utility/RNGAssignDefs.h
- Utility/RNGXDiv.cpp
- Utility/RNGXDiv.h
- Utility/RandomNumberGen.cpp
- Utility/RandomNumberGen.h
- Utility/SequenceGen.h
Closes #20 (closed)