Migrate *NativeMap classes to Kotlin (facebook#44581)

Summary:
Pull Request resolved: facebook#44581

# Changelog:
[Internal] -

This converts the vertical of NativeArray/ReadableNativeArray/WritableNativeArray classes to Kotlin.

Differential Revision: D57329244

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

@@ -1411,7 +1411,7 @@ public class com/facebook/react/bridge/ReadableNativeMap : com/facebook/react/br
 	public fun getDynamic (Ljava/lang/String;)Lcom/facebook/react/bridge/Dynamic;
 	public fun getEntryIterator ()Ljava/util/Iterator;
 	public fun getInt (Ljava/lang/String;)I
-	public static fun getJNIPassCounter ()I
+	public static final fun getJNIPassCounter ()I
 	public fun getLong (Ljava/lang/String;)J
 	public synthetic fun getMap (Ljava/lang/String;)Lcom/facebook/react/bridge/ReadableMap;
 	public fun getMap (Ljava/lang/String;)Lcom/facebook/react/bridge/ReadableNativeMap;
@@ -1539,7 +1539,7 @@ public final class com/facebook/react/bridge/WritableNativeArray : com/facebook/
 	public fun pushString (Ljava/lang/String;)V
 }
 
-public class com/facebook/react/bridge/WritableNativeMap : com/facebook/react/bridge/ReadableNativeMap, com/facebook/react/bridge/WritableMap {
+public final class com/facebook/react/bridge/WritableNativeMap : com/facebook/react/bridge/ReadableNativeMap, com/facebook/react/bridge/WritableMap {
 	public fun <init> ()V
 	public fun copy ()Lcom/facebook/react/bridge/WritableMap;
 	public fun merge (Lcom/facebook/react/bridge/ReadableMap;)V

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/NativeMap.kt

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.bridge
+
+import com.facebook.jni.HybridData
+import com.facebook.proguard.annotations.DoNotStrip
+
+/** Base class for a Map whose keys and values are stored in native code (C++). */
+@DoNotStrip
+public abstract class NativeMap(@field:DoNotStrip private val mHybridData: HybridData?) {
+  external override fun toString(): String
+
+  private companion object {
+    init {
+      ReactBridge.staticInit()
+    }
+  }
+}