refactor Use and Defs element with native code support(iOS)

ios/ViewManagers/RNSVGUseManager.m

@@ -0,0 +1,24 @@
+/**
+ * Copyright (c) 2015-present, Horcrux.
+ * All rights reserved.
+ *
+ * This source code is licensed under the MIT-style license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "RNSVGUseManager.h"
+#import "RNSVGUse.h"
+
+@implementation RNSVGUseManager
+
+RCT_EXPORT_MODULE()
+
+- (RNSVGNode *)node
+{
+  return [RNSVGUse new];
+}
+
+
+RCT_EXPORT_VIEW_PROPERTY(href, NSString)
+
+@end