add hub modules

.gitmodules

@@ -7,6 +7,9 @@
 [submodule "cobox-cli"]
 	path = cobox-cli
 	url = ssh://git@ledger-git.dyne.org:2240/CoBox/cobox-cli.git
+[submodule "cobox-command-schemas"]
+	path = cobox-command-schemas
+	url = http://ledger-git.dyne.org:3000/cobox/cobox-command-schemas
 [submodule "cobox-config"]
 	path = cobox-config
 	url = http://ledger-git.dyne.org:3000/cobox/cobox-config
@@ -25,6 +28,9 @@
 [submodule "cobox-group-store"]
 	path = cobox-group-store
 	url = http://ledger-git.dyne.org:3000/cobox/cobox-group-store
+[submodule "cobox-hub"]
+	path = cobox-hub
+	url = http://ledger-git.dyne.org:3000/cobox/cobox-hub
 [submodule "cobox-server"]
 	path = cobox-server
 	url = http://ledger-git.dyne.org:3000/cobox/cobox-server