Giganticon - Big Icons

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This Release:
1. Fix a bug where Giganticon wouldn't recognize when users had already purchased it.

Previous Release:
1. Add support for pulling the local icon from apps that use Adaptive Icons. This was preventing Giganticon from falling back to local icons.
2. Fix parsing of the Play Store HTML. This was preventing Giganticon from acquiring high res icons.
3. Switch to new in-app billing library.
4. Set target SDK appropriately.
5. Properly request storage permission to store large icons.