SDK-129: added set defaults map API

Author: Yogesh Singh

ios/Classes/CleverTapPlugin.m

@@ -235,6 +235,8 @@ - (void)handleMethodCall:(FlutterMethodCall*)call result:(FlutterResult)result {
         [self activate:call withResult:result];
     else if ([@"fetchAndActivate" isEqualToString:call.method])
         [self fetchAndActivate:call withResult:result];
+    else if ([@"setDefaultsMap" isEqualToString:call.method])
+        [self setDefaultsMap:call withResult:result];
     else if ([@"createNotification" isEqualToString:call.method])
         result(nil);
     else if ([@"createNotificationChannel" isEqualToString:call.method])
@@ -883,6 +885,11 @@ - (void)fetchAndActivate:(FlutterMethodCall *)call withResult:(FlutterResult)res
     result(nil);
 }
 
+- (void)setDefaultsMap:(FlutterMethodCall *)call withResult:(FlutterResult)result {
+    [[[CleverTap sharedInstance] productConfig] setDefaults:call.arguments[@"defaults"]];
+    result(nil);
+}
+
 
 
 #pragma mark - Helpers