Shops! Bigger Textures! New Challenges!

It's happened once again: Pop The Tick has received a new formula change... shops! 

Shops are special break zones that appear sometimes. When they appear, you can grab some permanent upgrades to your game! Before a shop begins, some text will appear telling you how many more ticks you need to kill before you enter the shop. Then, once you're in the shop, you can buy upgrades that do various things. Here are the upgrades so far:

• The Popper can have less endlag
• The Hammer can be faster
• You can make the Laser cannon not single-use
• You can make golden ticks more common

On top of this, I have completely redrawn the tick sprites to make them 5 times larger. This is so that there aren't any weird mixels when ticks grow. I also did this for the splats, although I think those might've been broken in the process. Not a big deal since they were annoying anyway. I forgot to do the fire though.

Added new sounds to look out for that tell you both when a golden tick spawns and disappears.

Added two new challenges:

• Oops! All Teleporters! - replaces all ticks with teleport ticks and makes a lot of them
• Fast Grow Ticks - Ticks grow faster. This one is pretty hard

Found a cool new small font Golfinho's pixel art spritefont (8x7) by Golfinho to replace the lemon font with.

Made it so the lemon indicator text now properly grows from right to left when the number gets really big.