Restructure Files in Features

[boudra]

This PR moves files around so that we split the codebase in feature or domains, decoupling business logic and the interface:

- src
  - cli # scripts that are executed form the command line, like indexer and passport
  - passport # passport feature
  - prices # prices feature
  - indexer # event handlers and blockchain related stuff
  - http # HTTP server feature
  - calculator # calculator related stuff
  - utils # miscelaneous util functions, we should split these up if new features start emerging

Complete structure:

src
├── calculator
│   └── index.ts
├── cli
│   ├── indexer.ts
│   └── passport.ts
├── config.ts
├── http
│   └── index.ts
├── indexer
│   ├── abis
│   ├── handleEvent.ts
│   └── handlers
├── passport
│   └── index.ts
├── prices
│   ├── coinGecko.ts
│   └── index.ts
├── test
│   ├── fixtures
│   └── server.test.ts
└── utils
    ├── fetchRetry.ts
    ├── getBlockFromTimestamp.ts
    ├── index.ts
    └── ipfs.ts

12 directories, 14 files

I want to encourage us to think in terms of features or domain to split files. Let's try to think before adding new files, where they should go and how we can structure things, and watch out for the utils folder if something becomes too big we can split it into it's own domains.

[gravityblast]

I like it <3