Add space for 100 frogs

[Poobslag]

Currently I think we have 16 frogs in the game.

I think a player should find about 30 frogs easily in the first hour of playing, which should dwindle down to about one frog every 2-3 minutes. I think the game should take about 3-5 hours to complete. This puts our target somewhere around 100 frogs.

Currently, our frogs are stored in an 8x8 tilemap. This either needs to be a 24x24 tilemap, or we need a few smaller tilemaps, or something else. Let's experiment and see what makes sense.

[Poobslag]

Each frog will have 8 frames: 2 frames for the 'normal pose', 2 frames for the 'you found me' pose, and then backgroundless versions of each.

If we have bigger 16 x 16 tilemaps, we can fit 32 frogs per tilemap. Four of these tilemaps would accommodate all frogs.