* Adds extension to handle interactions with Photos app
- isAuthorized to check/ask for authorization
- saveUIImage to save a UIImage to Photos
* Adds a Pause Menu button for taking game screenshots
* Adds @Feature and @Options for Game Screenshots
* Implements Game Screenshots feature in GameViewController
* Updates project settings
* Passes call to save to Photos as a closure into authorization prompt
- Ensures that the screenshot is saved when the user is first prompted for access to Photos
- More elegant extension code
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Co-authored-by: Riley Testut <riley@rileytestut.com>
