Adds text file with Unicode keyboard symbols.
Adds text file with Unicode keyboard symbols.

We could possible use some of these in menu entries. Added to repository
so it doesn't get lost for now.

wkitty42/fpGUI,wkitty42/fpGUI,wkitty42/fpGUI,wkitty42/fpGUI,wkitty42/fpGUI,wkitty42/fpGUI