void initFileHandlers() {
		FSBFileHandlerContext context = new FSBFileHandlerContext(plugin, this, fsService);
		fileHandlers = ClassSearcher.getInstances(FSBFileHandler.class);
		for (FSBFileHandler fileHandler : fileHandlers) {
			fileHandler.init(context);
		}
		fileHandlers.add(new DefaultFileHandler());
		plugin.getTool().addPopupActionProvider(this); // delegate to fileHandler's getPopupProviderActions()
	}
Creates a new {@link FSBComponentProvider} instance, taking
ownership of the passed-in {@link FileSystemRef fsRef}.

@param plugin parent plugin
@param fsRef {@link FileSystemRef} to a {@link GFileSystem}.
Ghidra/Features/Base/src/main/java/ghidra/plugins/fsbrowser/FSBComponentProvider.java