feat: copy jsonabc into project

[tjwelde]

NO-TICKET

Since we always have problems with the jsonabc library in react-native, I copied it directly into the project.

The problems stemmed from the library using a browser field in their package.json, but not building the library, so it leads to nothing.
In the past we built the file in our react-native projects, which is already not a good solution. To save this hassle, I just copied it here.

How to test:

• tests should run

Checklist:

• I have verified that the code works
• I have verified that the code is easy to understand
  • If not, I have left a well-balanced amount of inline comments
• I have left the code in a better state
• I have documented the changes (where applicable)

[Dudleyneedham]

LGTM