Add myself as a codeowner for the habitat_common crate
Not quite sure how I got left off this one :)
@@ -3,7 +3,7 @@ components/backline @baumanj
components/builder-api-client @chefsalim @raskchanky
components/butterfly* @christophermaier @baumanj @raskchanky
components/core @christophermaier @chefsalim @raskchanky @baumanj
-components/common @baumanj @raskchanky
+components/common @baumanj @raskchanky @christophermaier
components/hab @christophermaier @chefsalim @baumanj @raskchanky @eeyun
components/http-client @chefsalim @raskchanky
components/launcher* @christophermaier @baumanj @raskchanky
