Options menu, autosaving, et cetera

It's nothing big or glamorous, but I added a new options menu and features like autosaving to the game. Autosaving is pretty important, since it means you don't need to save manually as often, so you're much less likely to lose progress, especially on android. Autosaving can be turned on or off on the options menu.

The next update will include important NPCs you can talk to. Look forward to that update some time this week or next week.