Sentry, Stun, and Grapple

Hey again y'all, sorry I took so long to release this update since the last one. I've just had a hard time designing some sprites I feel proud of. Anyways, NEW STUFF YIPPEEEE-

Added 3 more active abilities: Grappling Hook, Sentry, and Stun Grenade!

Grappling Hook: Shoots a hook that grabs onto terrain and pulls you in. Its cooldown is 4 seconds

Sentry: Deploys a sentry that fires heavy projectiles that knocks enemies back and causes them to aggro onto it. Its cooldown is 7 seconds

Stun Grenade: Throws a bouncy grenade that stuns enemies when it explodes. Effectiveness varies on target. Its cooldown is 5 seconds

Increased the RPG's base cooldown by 1 second

Nerfed the poison dart upgrade's damage for the Sniper

Decoys (and Sentries) are now deployed in front of the player instead of on the player

Gave The Spitter its braincells back (for real this time) (hopefully) (maybe) (perhaps) (gone wrong) (gone fishing) (not actually)

Removed the Reset Highscore button from the options menu outside of the main menu

Explosions now fade out instead of instantly disappearing

Added red vignette when health is low and gets more intense the lower the player's health gets

Removed a bunch of redundant pathfinding area which'll hopefully boost performance a good bit

Fixed being able to use abilities while dead

Fixed the explosion hitting twice because of a silly little animation oopsie (I HATE UNITY'S ANIMATION SYSTEM SO MUCHHHHH)

Did some other stuff I prob forgor ¯\_(ツ)_/¯