* Add an action to autoclose the dialog for setting keybindings after 5 seconds, thus allowing capturing keys to attach to actions.
* Remove "Hello, world." from global script and move it into player.
* Add commands to speak coordinates, headings, and to stop speech.
* Add Quit command.
* Announce new screen on change.
* Other minor cleanups.
Current features include:
* A global script that initializes the TTS extension and speaks "Hello, world."
* A player Area2D node.
Once this plugin gains more features, the basic game will be removed, and it will be built in the context of actual production games.
