add FluwxDelegate in iOS

ios/Classes/FluwxDelegate.m

+//
+//  FluwxDelegate.m
+//  fluwx
+//
+//  Created by Mo on 2022/3/6.
+//
+
+#import <Foundation/Foundation.h>
+#import "FluwxDelegate.h"
+#import "WXApi.h"
+
+@implementation FluwxDelegate
+
+- (void) registerWxAPI:(NSString *)appId universalLink:(NSString *)universalLink {
+    [WXApi registerApp:appId universalLink:universalLink];
+}
+@end

ios/Classes/public/FluwxDelegate.h

+//
+//  FluwxDelegate.h
+//  Pods
+//
+//  Created by Mo on 2022/3/6.
+//
+#import <Foundation/Foundation.h>
+
+@interface FluwxDelegate : NSObject
+
+- (void)registerWxAPI:(NSString *)appId universalLink:(NSString *)universalLink;
+@end