🔧(docker) add compose command

We recently split our docker-compose configuration in several files to handle
 properly the use of several database technology in our repository. There is
one drawback to this; we cannot use simply docker compose command, we have to
target right docker compose files to use according to the active database we
want to use.

bin/compose

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+source "$(dirname "${BASH_SOURCE[0]}")/_config.sh"
+
+_docker_compose "$@"