Breaking changes

We change our implementation to a extension like approach taking inspiration on this repo

The were a few reasons:

• Delegate approach using BugleDelegate was limited and could lead to unexpected behavior.
• We were forcing the developer to define a set of default options at the AppDelegate.
• Customization was limited to the options array and the available play methods inside the Bugle class definition.
• We were not supporting action sheets style for alerts.

Major API changes:

• Remove the following files: BuglePiece, BugleType, Bugle+Ext and Bugle+Merge
• Unify all the API inside a single file called Bugle