Adapt build.gradle to make this lib buildable from our project setup

native/android/build.gradle

@@ -1,3 +1,27 @@
+buildscript {
+    ext.kotlin_version = "1.3.10"
+    repositories {
+        mavenCentral()
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.2.1'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+allprojects {
+    repositories {
+        mavenLocal()
+        jcenter()
+        maven {
+            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
+            url "$rootDir/../../../react-native/android"
+        }
+    }
+}
+
 apply plugin: 'com.android.library'
 apply plugin: 'kotlin-android'
 
@@ -25,5 +49,5 @@ dependencies {
 }
 repositories {
     mavenCentral()
+    google()
 }
-