First step on new main suite

- Add individual tests for parsing array
- Add test for max depth of parsing
- Added README
Moved write depth limit test to new structure

- Added ability to read in .plists for writing,  so we can attempt to write things we cannot read in from JSON.
- Refactor MainSuite
Moved null & boolean tests over to new structure
Make sure we cannot parse scalar values
Move tests for writing Inf and NaN over to new structure