Discord.Addons.Interactive Versions Save

This is the initial release of my Interactive addon for Discord.Net

Added

• Added ICriterion<T>
• Added Criteria<T>, to support running multiple criteria at once
• Added some basic criteria for messages
• Added IReactionCallback for handling reactions on messages
• Added PaginatedMessageCallback to serve as a reaction-powered Paginator
• Added InteractiveService, with support for ReactionCallbacks, and waiting for messages
• Added InteractiveBase<T>, a derivative of ModuleBase, to provide easy access to the methods on InteractiveService
• Added OkResult, a derivative of RuntimeResult; to be used with the Ok() method on InteractiveBase. This is designed to be used like ASP.NET Core's IActionResult pattern - awaiting RogueException/Discord.Net#747 for more support