Initial Gem Creation

https://thinkneardev.atlassian.net/browse/REX-1187

Added new Honeybadger Team Split

- Created new gem
- Required Honeybadger gem, sidekiq is optional
- Split into Honeybadger monkey patching and split project
- Removed "Ruby" sub-folder to mimic Honeybadger gem
- Added to readme

https://thinkneardev.atlassian.net/browse/REX-1229
https://thinkneardev.atlassian.net/browse/REX-1231
could we send notify_details with api key here instead ?? ... feels a bit more symetric (also will continue working even if notify_details method changes)