Implement RCTTextInlineImage with Nodes

Summary:
React allows nesting <Image> inside <Text>, in which case it turns into an RCTTextInlineImage element. RNFeed is using it in a few places and thus we need to support it, too.

This diff implements it with InlineImageSpan (WithPipeline, and WithDrawee separately).

Reviewed By: ahmedre

Differential Revision: D2792569

ReactAndroid/src/main/java/com/facebook/react/flat/RCTTextInlineImageManager.java

@@ -0,0 +1,31 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+package com.facebook.react.flat;
+
+/**
+ * ViewManager that creates instances of RCTTextInlineImage.
+ */
+/* package */ final class RCTTextInlineImageManager extends VirtualViewManager<RCTTextInlineImage> {
+
+  @Override
+  public String getName() {
+    return "RCTTextInlineImage";
+  }
+
+  @Override
+  public RCTTextInlineImage createShadowNodeInstance() {
+    return new RCTTextInlineImage();
+  }
+
+  @Override
+  public Class<RCTTextInlineImage> getShadowNodeClass() {
+    return RCTTextInlineImage.class;
+  }
+}