Rename analyticsTag -> internal_analyticsTag in ImageView component

Summary:
This diff renames the analyticsTag prop for the intenral_analyticsTag in ImageView component

changelog: [internal] Creation of internal_analyticTag prop in ImageView, for now this prop is meant to be used internally.

Reviewed By: TheSavior

Differential Revision: D20904497

fbshipit-source-id: 2a28f746772ee0f9d657ec71549020c1f3e9d674

Author: mdvacca

Libraries/Image/Image.android.js

@@ -99,7 +99,7 @@ const ImageProps = {
   /**
    * Analytics Tag used by this Image
    */
-  analyticTag: PropTypes.string,
+  internal_analyticTag: PropTypes.string,
   /**
    * Invoked on load start
    */
@@ -299,7 +299,7 @@ let Image = (props: ImagePropsType, forwardedRef) => {
           analyticTag !== null
             ? {
                 ...nativeProps,
-                analyticTag: analyticTag,
+                internal_analyticTag: analyticTag,
               }
             : nativeProps;
         return (

Libraries/Image/ImageProps.js

@@ -69,9 +69,9 @@ export type ImageProps = {|
   accessible?: ?boolean,
 
   /**
-   * Analytics Tag used by this Image
+   * Internal prop to set an "Analytics Tag" that can will be set on the Image
    */
-  analyticTag?: ?string,
+  internal_analyticTag?: ?string,
 
   /**
    * The text that's read by the screen reader when the user interacts with

ReactAndroid/src/main/java/com/facebook/react/views/image/ReactImageManager.java

@@ -124,8 +124,8 @@ public void setBlurRadius(ReactImageView view, float blurRadius) {
     view.setBlurRadius(blurRadius);
   }
 
-  @ReactProp(name = "analyticTag")
-  public void setAnalyticsTag(ReactImageView view, @Nullable String analyticTag) {
+  @ReactProp(name = "internal_analyticTag")
+  public void setInternal_AnalyticsTag(ReactImageView view, @Nullable String analyticTag) {
     if (mCallerContextFactory != null) {
       view.updateCallerContext(
           mCallerContextFactory.getOrCreateCallerContext(