public DataType getOffsetType(int size) {
		return findMatchingDataTypeBySize(baseDataTypeUntyped, size);
	}
Returns a Ghidra {@link DataType datatype} that corresponds to a type
that can be used to represent an offset.

@param size
@return
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DWARFDataTypeManager.java