public int getVDisp() throws InvalidDataTypeException {
		return getPmdValue(VDISP_ORDINAL);
	}
Gets the displacement within the vbtable for this RTTI 1.
@return the displacement in the vbtable
@throws InvalidDataTypeException if this isn't a valid model at the specified address.
Ghidra/Features/MicrosoftCodeAnalyzer/src/main/java/ghidra/app/cmd/data/rtti/Rtti1Model.java