Adds ability to send text as a string

Limited to 1024 chars
Adds an "enter" button

This seems useful for things like searches.
Eventually I will want arrow keys I think too?
Actually, page up and down could be useful.
At some point I really need some help designing this!
Trying KP_Enter
Tweaks a few styles

This is obviously still awful, but less awful.
Provides even more space for enter button

So many ideas, so little time.