bump gradle to 5.0, android gradle plugin to 3.3.1 (#23324)

Summary:
This PR bumps gradle to 5.0, which includes Kotlin DSL 1.0, and android gradle plugin to 3.3.1, which includes includes various bug fixes and performance improvements. Also Gradle 5.x requires Java 8.

This is preparation for Kotlin DSL migration.

[Android] [Changed] - Bump Gradle to 5.0

Pull Request resolved: https://github.com/facebook/react-native/pull/23324

Reviewed By: mdvacca

Differential Revision: D14028563

Pulled By: hramos

fbshipit-source-id: 61fe1a2d4ea5707d6f07945acbd950f852420e13

build.gradle

@@ -10,7 +10,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath("com.android.tools.build:gradle:3.3.1")
+        classpath("com.android.tools.build:gradle:3.3.0")
         classpath("de.undercouch:gradle-download-task:3.4.3")
 
         // NOTE: Do not place your application dependencies here; they belong

gradle/wrapper/gradle-wrapper.properties

@@ -1,7 +1,5 @@
-#Thu Jan 24 16:45:50 BRST 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.0-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-all.zip
-android.debug.obsoleteApi=true

template/android/build.gradle

@@ -13,7 +13,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.1'
+        classpath 'com.android.tools.build:gradle:3.3.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

template/android/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.0-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-all.zip