Upgrade Example to RN 0.64 (#83)

* ReactLogger: Also log function

* Run SwiftFormat & SwiftLint in example project

* Upgrade to RN 0.64 1/2

* Update lockfiles

* Upgrade a few packages

* index.tsx -> index.js

* Upgrade docusaurus

* Fix line length violation

* Update CameraView.swift

* Update gradle plugin

* Fix example to prefer higher res cameras

* Remove unused log line

* Update App.tsx

android/build.gradle

@@ -11,7 +11,7 @@ buildscript {
   }
 
   dependencies {
-    classpath 'com.android.tools.build:gradle:4.1.2'
+    classpath 'com.android.tools.build:gradle:4.1.3'
     // noinspection DifferentKotlinGradleVersion
     classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     classpath "org.jetbrains.kotlin:kotlin-android-extensions:$kotlin_version"