@Override
	protected int getDataTypeLength() {
		return getDataType().getLength();
	}
This gets the BaseClassDescriptor (RTTI 1) structure for the indicated program.
@param program the program which will contain this data type. 
@return the BaseClassDescriptor (RTTI 1) structure.
Ghidra/Features/MicrosoftCodeAnalyzer/src/main/java/ghidra/app/cmd/data/rtti/Rtti1Model.java