public boolean valueIsDWord() {
		return childValue != null && "Var".equals(childDataType);
	}
@return true if value is 4-byte integer value in memory 
while string value return by {@link DataType#getValue(ghidra.program.model.mem.MemBuffer, ghidra.docking.settings.Settings, int)
DataType.getValue(MemBuffer, Settings, int)} is a numeric hex string.
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/pe/resource/VS_VERSION_CHILD.java