Split iOS sdk in to separate targets

webrtc/sdk/objc/Framework/Classes/RTCVideoCapturer.m

-/*
- *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#import "WebRTC/RTCVideoCapturer.h"
-
-@implementation RTCVideoCapturer
-
-@synthesize delegate = _delegate;
-
-- (instancetype)initWithDelegate:(id<RTCVideoCapturerDelegate>)delegate {
-  NSAssert(delegate != nil, @"delegate cannot be nil");
-  if (self = [super init]) {
-    _delegate = delegate;
-  }
-  return self;
-}
-
-@end