CORE-1768 make method more swift friendly

Author: echo-branch

Branch-SDK/Branch.h

@@ -692,7 +692,7 @@ typedef NS_ENUM(NSUInteger, BranchCreditHistoryOrder) {
  Otherwise the prompt will not display and the completion will be called with current status.
  This will inflate the number of OPT_IN and OPT_OUT events tracked by Branch.
  */
-- (void)handleOptInStatus:(unsigned long)status;
+- (void)handleOptInStatus:(NSUInteger)status;
 
 /**
  Set time window for SKAdNetwork callouts.  By default, Branch limits calls to SKAdNetwork to within 24 hours after first install.

Branch-SDK/Branch.m

@@ -970,7 +970,7 @@ - (void)setAppClipAppGroup:(NSString *)appGroup {
     [BNCAppGroupsData shared].appGroup = appGroup;
 }
 
-- (void)handleOptInStatus:(unsigned long)status {
+- (void)handleOptInStatus:(NSUInteger)status {
     BranchEvent *event;
     switch (status) {
         case 2: