Update .gitignore

.gitignore

@@ -1,15 +1,32 @@
-*.iml
-.gradle
-/local.properties
-/.idea/caches
-/.idea/libraries
-/.idea/modules.xml
-/.idea/workspace.xml
-/.idea/navEditor.xml
-/.idea/assetWizardSettings.xml
-.DS_Store
-/build
-/captures
-.externalNativeBuild
-.cxx
+# Generated files
+bin/
+gen/
+
+# Local configuration file (sdk path, etc)
 local.properties
+
+# Log Files
+*.log
+
+# OSX files
+.DS_Store
+
+# Gradle files
+.gradle/
+build/
+
+# Android Studio
+*.iml
+.idea/
+
+# NDK
+obj/
+
+# External native build folder generated in Android Studio 2.2 and later
+.externalNativeBuild
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Kotlin 2
+.kotlin