re-added the public-facing changes for identity v3

Purchases/Public/RCPurchases.h

@@ -161,7 +161,8 @@ NS_SWIFT_NAME(Purchases)
  If a user tries to purchase a product that is active on the current app store account, we will treat it as a restore and alias
  the new ID with the previous id.
  */
-@property (nonatomic) BOOL allowSharingAppStoreAccount;
+@property (nonatomic) BOOL allowSharingAppStoreAccount
+    __attribute((deprecated("Configure behavior through the RevenueCat dashboard instead.")));
 
 /// Default to YES, set this to NO if you are finishing transactions with your own StoreKit queue listener
 @property (nonatomic) BOOL finishTransactions;
@@ -193,13 +194,26 @@ NS_SWIFT_NAME(createAlias(_:_:));
  @param appUserID The appUserID that should be linked to the currently user
  */
 - (void)identify:(NSString *)appUserID completionBlock:(nullable RCReceivePurchaserInfoBlock)completion
-NS_SWIFT_NAME(identify(_:_:));
+NS_SWIFT_NAME(identify(_:_:)) __attribute((deprecated("Use logIn instead.")));
 
 /**
  * Resets the Purchases client clearing the saved appUserID. This will generate a random user id and save it in the cache.
  */
 - (void)resetWithCompletionBlock:(nullable RCReceivePurchaserInfoBlock)completion
-NS_SWIFT_NAME(reset(_:));
+NS_SWIFT_NAME(reset(_:)) __attribute((deprecated("Use logOut instead.")));
+
+/**
+ This function will identify the current user with an appUserID.
+ @param appUserID The appUserID that should be linked to the currently user
+ */
+- (void)  logIn:(NSString *)appUserID
+completionBlock:(void (^)(RCPurchaserInfo *_Nullable purchaserInfo, BOOL created, NSError *error))completion
+NS_SWIFT_NAME(logIn(_:_:));
+
+/**
+ Resets the Purchases client clearing the saved appUserID. This will generate a random user id and save it in the cache.*/
+- (void)logOutWithCompletionBlock:(nullable RCReceivePurchaserInfoBlock)completion
+NS_SWIFT_NAME(logOut(_:));
 
 #pragma mark Attribution