Migrate YogaConfigFactory to Kotlin (#1833)

Summary:
Migrate com.facebook.yoga.YogaConfigFactory to Kotlin.

Pull Request resolved: https://github.com/facebook/yoga/pull/1833

Test Plan:
RN
```sh
yarn android
yarn test-android
```

Yoga
```sh
./gradlew :yoga:assembleDebug
```

Reviewed By: rshest

Differential Revision: D79897762

Pulled By: cortinico

fbshipit-source-id: 9457b307204f2066a02690f96a88fce6755f915e

java/com/facebook/yoga/YogaConfigFactory.kt

@@ -5,10 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-package com.facebook.yoga;
+package com.facebook.yoga
 
-public abstract class YogaConfigFactory {
-  public static YogaConfig create() {
-    return new YogaConfigJNIFinalizer();
-  }
+public object YogaConfigFactory {
+  @JvmStatic public fun create(): YogaConfig = YogaConfigJNIFinalizer()
 }