@Override
	public boolean isFallThru() {
		return isfallthru;
	}
Provide basic form,  restoreXml fills in the rest
@param nm  must provide formal name
@param tp  must provide type
@param sourceName is a description of the source of this payload
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/InjectPayloadSleigh.java