try automated licensing

Author: felixmortas

android/build.gradle

@@ -20,7 +20,15 @@ allprojects {
 
 rootProject.buildDir = '../build'
 subprojects {
+    apply plugin: 'com.github.hierynomus.license'
+
     project.buildDir = "${rootProject.buildDir}/${project.name}"
+
+    license {
+        header = rootProject.file('LICENSE_HEADER')
+        includes = ['**/*.java', '**/*.kt', '**/*.groovy']
+        strictCheck = true
+    }
 }
 subprojects {
     project.evaluationDependsOn(':app')