BTHLABS-66: Prepping for public release: Take five

AKA "Using Apple reviewers as QA for your project". Thanks, y'all! :)

services/apple/macOS (App)/AuthorizationProgressViewController.h

@@ -6,13 +6,19 @@
 //
 
 #import <Cocoa/Cocoa.h>
+#import <AuthenticationServices/AuthenticationServices.h>
 
 NS_ASSUME_NONNULL_BEGIN
 
-@interface AuthorizationProgressViewController : NSViewController
+@interface AuthorizationProgressViewController : NSViewController<ASWebAuthenticationPresentationContextProviding>
 
 @property IBOutlet NSProgressIndicator *progressIndicator;
 @property NSString *progressLabelTitle;
+@property (nullable, strong) NSURL *authorizationURL;
+@property (nullable, strong) ASWebAuthenticationSession *webAuthenticationSession;
+@property BOOL userCancelledSession;
+
+-(IBAction)doCancel:(id)sender;
 
 @end