Add code owners for the tools directory
@@ -12,4 +12,5 @@ components/plan-build @fnichol @christophermaier
components/studio @fnichol @baumanj
components/sup @christophermaier @reset @fnichol @baumanj
support @fnichol @baumanj
+tools @baumanj @chefsalim @christophermaier @eeyun
www @cnunciato @mgamini
