add: .gitignore

Author: amirisback

.gitignore

@@ -1,13 +1,35 @@
 *.iml
+/.gradle
 .gradle
+.idea
 /local.properties
-/.idea/caches
 /.idea/libraries
 /.idea/modules.xml
 /.idea/workspace.xml
-/.idea/navEditor.xml
-/.idea/assetWizardSettings.xml
 .DS_Store
+build
 /build
 /captures
 .externalNativeBuild
+
+built application files
+.apk
+.ap_
+
+files for the dex VM
+*.dex
+
+Java class files
+*.class
+
+generated files
+bin/
+gen/
+.externalNativeBuild/
+
+Local configuration file (sdk path, etc)
+local.properties
+app/version.properties
+
+# SonarQube
+.sonar/