Add base class for Invites
Add JSON writes helper to model
Add JSON reads helper to model
Refractor invite write to use JSON combinator approach
Refractor both methods to use alias for JsPath
Move imports to companion object's scope
Fix typo in companion object
Add base InviteAPI controller object
Add method to respond with a hardcoded Invite object as JSON
Add route for GET /invitation to listInvites method of InviteAPI
Ignore target/ and logs/ directories
Add target and logs to gitignore