IDEA Project code-style settings (#2021)

* Using Kotlin official style
* Start imports for all packages
* Continuation indent size = 4
diff --git a/.gitignore b/.gitignore
index 705dfaf..aed7103 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,8 @@
 !/.idea/icon.png
 !/.idea/vcs.xml
 !/.idea/copyright
+!/.idea/codeStyleSettings.xml
+!/.idea/codeStyles
 *.iml
 .gradle
 .gradletasknamecache