@Override
	protected void programActivated(Program program) {
		program.addListener(programListener);
		setProgram(program);
		componentProvider.setCurrentProgram(program);
	}
Read the data for the plugin upon deserialization; reads what should be
the current selection in the tree.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/programtree/ProgramTreePlugin.java