@Override
	public String getStatusMsg() {
		return "";
	}
Command constructor for adding a memory reference
@param fromAddr address of the codeunit where the reference occurs
@param toAddr address of the location being referenced.
@param refType reference type - how the location is being referenced.
@param source the source of the reference
@param opIndex the operand index in the code unit where the reference occurs
@param setPrimary set the newly added reference primary
Ghidra/Features/Base/src/main/java/ghidra/app/cmd/refs/AddMemRefCmd.java