public DBTraceReference addOffsetReference(long creationSnap, Address from, Address to,
			boolean toAddrIsBase, long offset) {
		return trace.getReferenceManager()
				.addOffsetReference(Lifespan.nowOn(creationSnap), from, to, toAddrIsBase, offset,
					RefType.DATA, SourceType.DEFAULT, -1);
	}
Add a base-offset memory reference

@param creationSnap the starting snap
@param from the from address
@param to the to address
@param toAddrIsBase true if {@code to} is the base address, implying offset must be added to
           get the real to address.
@param offset the offset
@return the reference
Ghidra/Debug/Framework-TraceModeling/src/test/java/ghidra/trace/database/ToyDBTraceBuilder.java