update LuckyFrogz Slot machine

[nuljon]

[ ] update UI and include more animation [x] make player and credits persistent via local storage [ ] fix game logic for hung spins and betting bug [ ] make responsive to viewport resize and orientation change [ ] add function for stopping mid spin

[nuljon]

• added animated pull lever
• added animated lighting effect on mouse over
• structured layout using tables and grids
• added login/logoff for persistent name and credits in local storage

[nuljon]

need to separate these issues