Feat: Implement core schemas

[NixAshes]

• Implemented ModelManager class
• Implemented core schemas for View, Role, DataModel, Module, User, and Person in ModelManager
• Implemented schema for Application in AidApplication module
• Transitioned PersonModel into ModelManager as ModelManager.userSchema
• Removed Modules/RoleList.ts as unnecessary
• Added scripts "npm run compile" and "npm run back" to package.json for local compile and run of backend
• Reformatted all .ts files

[NixAshes]

1. The vcs.xml file (and the whole .idea directory) is a thing from my IDE that's supposed to be in the gitignore but apparently isn't. Safe to ignore, I'll try to convince my IDE not to pretend everyone else is using WS too.

2. private static readonly declares a static field - aka shared between all instances of the class - that can't be directly accessed from outside the class (use the getter), and can't be changed. And yes, ofc I can go through it with you more in depth whenever we both have time :)

3. The RFA (reason for assistance) is basically just a personal statement explaining why the client needs assistance. The thing that needs a model is the key below that - income. Reason for that is because income is a complicated subject with a lot of variables, and whole I'm perfectly happy to abstract most of those away for a proof of concept, I think the facade should at least be there to facilitate later complexity.