Convert FakeRCTEventEmitter to Kotlin (#37733)

Summary:
Converts FakeRCTEventEmitter from Java to Kotlin, as per issue #37708

## Changelog:

[Internal] [Changed] - Convert FakeRCTEventEmitter to Kotlin

Pull Request resolved: #37733

Test Plan:
Tests pass: `./gradlew :packages:react-native:ReactAndroid:test`
Formatted with [KtFmt](https://facebook.github.io/ktfmt/)

Reviewed By: rshest

Differential Revision: D46513891

Pulled By: cortinico

fbshipit-source-id: 4ad70242d88cc89f8f8033fd437d43df2283c4a1

Author: dcangulo

packages/react-native/ReactAndroid/src/test/java/com/facebook/react/bridge/interop/FakeRCTEventEmitter.java

@@ -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.interop
+
+import com.facebook.react.bridge.WritableArray
+import com.facebook.react.bridge.WritableMap
+import com.facebook.react.uimanager.events.RCTEventEmitter
+
+class FakeRCTEventEmitter : RCTEventEmitter {
+
+  override fun receiveEvent(targetReactTag: Int, eventName: String, event: WritableMap?) {}
+
+  override fun receiveTouches(
+      eventName: String,
+      touches: WritableArray,
+      changedIndices: WritableArray
+  ) {}
+}