@Override
	public Program getDestinationProgram() {
		return destinationProgram;
	}
ExternalsAddressTranslator is a translator that can be used for merging external functions and
labels. <br>
Important: Before using this with ProgramMerge you must add all the address pairs that
will translate the external address space address from the source program to the address
in the destination program.
Ghidra/Features/Base/src/main/java/ghidra/app/merge/listing/ExternalsAddressTranslator.java