## Goal of this PR
The goal of this PR is to make `OptionsProcessor.ts` great again 🇺🇸 . To me it was total mess including tests. 

## What was wrong or funky?
1. the tests tested if React Native's `processColor` color works as it should even though react native has [multiple tests for this](https://github.com/facebook/react-native/blob/master/Libraries/StyleSheet/__tests__/processColor-test.js). Aka we don't have to test React Native's functions :D
2. `LayoutTreeCrawler.test.ts` was testing `OptionsProcessor`s functionality so it was removed now
3. Lots of small things since this was done before putting `noImplicitAny` to true so it wasn't made TypeScript in mind

## Result
Now `OptionsProcessor.ts` should be
1. code way more clear
2. tests are testing only things that they should
3. tests are written in clear way
4. it is easy to see from the tests what the whole function does
5. type safe for TypeScript `noImplicitAny` (when we actually turn it on)