v2.0.0: the base update (again???)

Base incremental 2.0. I never actually thought I would ever change the first number, but here we are. Basically (ha), I had three main reasons for doing this. 1. My original code was messy and confusing. I like to think it's not so much now. 2. I wanted to implement a big number class so that I could have, well, big numbers, and replacing every occurrence of an integer with BIG() and every occurrence of + with .add() and every occurrence of Math.log() with .log() would be time consuming and unruly. 3. Some random guy on reddit called my game "barely-a-game", so now I have to prove them wrong by adding significantly more content.

Speaking of adding content, I removed a significant amount of content. In v1 I had implemented up until hyperspace, but this update took the game back to just base. While it may have significantly less content overall (at the moment), there is significantly more content within base, and the pacing is much more thought-out. So basically (ha) the game is good now.

Original game link: https://robocittykat.github.io/Base-incremental/