build(ide): store IntelliJ IDEA module files

This change allows storing JetBrains IDE files in Git.

Author: arikkfir

.gitignore

@@ -1 +0,0 @@
-*.iml

justest.iml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="Go" enabled="true" />
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>