Sliding 15 Puzzle maker GamePad and KeyBoard

Added two new settings for GamePad 🎮 and KeyBoard ⌨️.
And also now you can specify the number of the empty square, by default it is the lower right quadrant.

emptySlot:[1],  // Empty square number, defaults to the lower right quadrant.
keyBoard:true, // Control using the keys on the keyboard
gamePad:true  // Control using the joystick on the Gamepad

Sliding 15 Puzzle maker

All planned functionality has been implemented

• Automatic style adaptation based on image dimensions
• Proportional division of an image into blocks
• Moving multiple blocks in one move
• Drag and Drop upload image
• Building / exporting HTML file with the game
• Responsive fill mode and full screen mode