MISC: A bunch of enums stuff. (#212)

* Some game enums moved to utils/enums. Others can eventually be moved there as well.
* findEnumMember function for performing fuzzy matching of player input with enum members, without needing separate fuzzy functions for every enum.
* Also used findEnumMember for safely loading save games (allows case changes in enum values)
* Changed capitalization on some enums.
* BREAKING: removed classGains work formulas function
* Split ClassType enum into UniversityClassType and GymType.
* Added universityGains and gymGains work formulas functions
* Provided the new split enums to the player on ns.enums.

src/Netscript/RamCostGenerator.ts

@@ -602,7 +602,8 @@ export const RamCosts: RamCostTree<NSFull> = {
     work: {
       crimeSuccessChance: 0,
       crimeGains: 0,
-      classGains: 0,
+      gymGains: 0,
+      universityGains: 0,
       factionGains: 0,
       companyGains: 0,
     },