Create a plugin to reopen missing files from Sublime Text start up

[evandrocoan]

This should partially fix this issue:

1. Ctrl+Shift+T does not reopen cloned views neither missing files from start up sublimehq/sublime_text#2927 Ctrl+Shift+T` does not reopen cloned views neither missing files from start up

Additionally, you can create your own open_recently_closed_file (Ctrl+Shift+T) command, which works correctly.

Note, when Sublime Text is closed, you can:

    def on_window_command(self, window, command_name, args):
        if command_name == "exit":
            # Un maximize all windows before exiting
            windows = sublime.windows()
            for w in windows:
                w.run_command("unmaximize_pane")

But this does not work if Sublime Text is not closed by the menu File -> Exit:

1. Add the on_exit event sublimehq/sublime_text#2950 Add the on_exit event

Then, you could create a dedicated thread to periodically monitor the open files?

Probably better improve/extend the event listeners on SkipCloseForClonedViews to also monitor which files are open, and reopen them or just create the "phantom" views when Sublime Text started.

A phantom view is created automatically by Sublime text when you ask for it to open a file which does not exists on the file system, i.e., window.open('nonexistent')