#42 Users now have the option to have a tooltip on the pieces during var...

...iant creation or gameplay. Currently the tooltip has a 3x3 grid with movement notation like that in the piece creation panel, as well as a couple bullet points stating any knight-like movements or if it's a leaper. I also fixed an issue with the panes getting out of stack order in the piece creation process, and with custom piece names being added multiple times to the piece list on the variant creation screen.