Dev Log: Mar 1st

Notes: This was a meaty update! Added the entire shop system, albeit crude-looking. The Pause menu shows a full inventory and stat breakdown now - also, items and potions exist! Items alter stats passively, potions are temporary boosts. Very near something worth publishing, after a balance pass to tweak some numbers.

-Added graphical assets for consumables (hp/dmg/def pot)

-Added code to alter stats when acquiring items

-Added code to handle hp/buff potions

-Added randomization for item/potion choice in shop

-Added weapon upgrade system w/ scaling cost

-Added shop system

-Fixed Wave counter issue

-Fixed free first upgrade bug in shop

-Added cash display to shop screen

-Added potion use functionality in pause menu

-Re-structured pause menu display

 -Added character sprite in pause menu

-Added weapon stats in pause menu

-Added inventory + description in pause menu

-Added crude death event - ends game for now

-Fixed hp resetting between waves

-Fixed infinite loop in InvMgr