Tvdbapi-client

* change userpass to userkey so we can authenticate
* [TASK] Update coverage configuration file
* [TASK] General cleanup

* [BUGFIX] Option group not completed

* [TASK] Place configs under group tvdb

* [TASK] Add auto-generated code documentation
* [TASK] Clean up documentation
* [FEATURE] Filter episodes

* [TASK] Update tasks
* [TASK] Provide exception wrapper

* [TASK] Added badges
* [TASK] Enable external development services
* [TASK] Final touches and clean up
* [TASK] Added mock testing and more documentation
* [FEATURE] Initial implementation, tests, and docs
* initial commit