codeowners: add code owners (#82)

* codeowners: add code owners

- added some codeowners
please comment if youd like to be added as well.

Signed-off-by: Marko Baricevic <marbar3778@yahoo.com>

* remove comment of repo maintainers

.github/CODEOWNERS

@@ -0,0 +1,3 @@
+# CODEOWNERS: https://help.github.com/articles/about-codeowners/
+
+*       @milosevic @ebuchman @josef-widder @konnov