fix(android): make getUri and isResource available for override (#46152)

Summary:
Fixes following issues:
- https://github.com/facebook/react-native/issues/46150
- https://github.com/facebook/react-native/issues/46155

## Changelog:

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[ANDROID] [FIXED] - Make getUri and isResource open

Pull Request resolved: https://github.com/facebook/react-native/pull/46152

Reviewed By: NickGerleman, rshest, blakef

Differential Revision: D61845164

Pulled By: cortinico

fbshipit-source-id: 88ccdad92423b5add9b2fad4c98f296b6cbfb27d

packages/react-native/ReactAndroid/api/ReactAndroid.api

@@ -6720,9 +6720,9 @@ public class com/facebook/react/views/imagehelper/ImageSource {
 	public final fun getSize ()D
 	public final fun getSource ()Ljava/lang/String;
 	public static final fun getTransparentBitmapImageSource (Landroid/content/Context;)Lcom/facebook/react/views/imagehelper/ImageSource;
-	public final fun getUri ()Landroid/net/Uri;
+	public fun getUri ()Landroid/net/Uri;
 	public fun hashCode ()I
-	public final fun isResource ()Z
+	public fun isResource ()Z
 }
 
 public final class com/facebook/react/views/imagehelper/ImageSource$Companion {

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/imagehelper/ImageSource.kt

@@ -23,12 +23,14 @@ constructor(
 ) {
 
   /** Get the URI for this image - can be either a parsed network URI or a resource URI. */
-  public val uri: Uri = computeUri(context)
+  public open val uri: Uri = computeUri(context)
   /** Get the area of this image. */
   public val size: Double = width * height
   /** Get whether this image source represents an Android resource or a network URI. */
-  public var isResource: Boolean = false
-    private set
+  public open val isResource: Boolean
+    get() = _isResource
+
+  private var _isResource: Boolean = false
 
   override fun equals(other: Any?): Boolean {
     if (this === other) {
@@ -58,7 +60,7 @@ constructor(
       }
 
   private fun computeLocalUri(context: Context): Uri {
-    isResource = true
+    _isResource = true
     return ResourceDrawableIdHelper.instance.getResourceDrawableUri(context, source)
   }