[feature] framework target and carthage support

[dodikk]

The project lacks an actual framework target so that it can be linked dynamically to apps and app extensions. "CocoaPods only" distribution makes this code hard to use by developers whose dependencies are dynamic frameworks.

P.S. It will be possible to use this code with Carthage package manager

[dodikk]

Я подумал, что такой контрол может быть удобен для отображения загрузки разных вещей и что он может пригодиться где-то еще — и вынес его в отдельный фреймворк

If you choose not implementing this feature, please fix your article
Automated drag&drop is not a framework.

[PavelKatunin]

Sure, I'll create framework target, I supposed it had been generated automatically by cocoapod command. Thanks.