add application plugin to the apktool-cli (#3070)

brut.apktool/apktool-cli/build.gradle

@@ -15,13 +15,6 @@
  */
 import proguard.gradle.ProGuardTask
 
-apply plugin: 'com.github.johnrengelman.shadow'
-
-dependencies {
-    implementation depends.commons_cli
-    implementation project(':brut.apktool:apktool-lib')
-}
-
 buildscript {
     dependencies {
         repositories {
@@ -35,6 +28,20 @@ buildscript {
     }
 }
 
+plugins {
+    id 'com.github.johnrengelman.shadow'
+    id 'application'
+}
+
+dependencies {
+    implementation depends.commons_cli
+    implementation project(':brut.apktool:apktool-lib')
+}
+
+application {
+    mainClass = 'brut.apktool.Main'
+}
+
 jar {
     manifest {
         attributes 'Main-Class': 'brut.apktool.Main'

settings.gradle

@@ -1,3 +1,4 @@
+rootProject.name = 'apktool-cli'
 include 'brut.j.common',
         'brut.j.util',
         'brut.j.dir',