File Manager methods

detach	Allows removing/detaching action handlers
exec	Allows triggering the File Manager actions
getFile	Allows getting data for a file or folder
getReactiveState	Gets an object with the reactive properties of File Manager
getState	Gets the state object that stores current values of most File Manager properties
getStores	Gets an object with the DataStore properties of the Filemanager
intercept	Allows intercepting and blocking/modifying actions
on	Allows attaching a handler to the inner events
serialize	Allows getting the current file structure as a plain array
setNext	Allows adding some action into the Event Bus order