Merge pull request #79 from Kottidev/master

RN iOS headers work on RN < 40 and RN >= 40

Author: auser

ios/OAuthManager/OAuthManager.h

@@ -7,8 +7,18 @@
 
 #import <Foundation/Foundation.h>
 
-#import <React/RCTBridgeModule.h>
-#import <React/RCTLinkingManager.h>
+#if __has_include("RCTBridgeModule.h")
+    #import "RCTBridgeModule.h"
+else
+    #import <React/RCTBridgeModule.h>
+#endif
+
+#if __has_include("RCTLinkingManager.h")
+    #import "RCTLinkingManager.h"
+else
+    #import <React/RCTLinkingManager.h>
+#endif
+
 
 @class OAuthClient;