convert over to docker-compose v2 format, create 'xos' network, to try to get #1850 in faster
use xos_db db host, update other docker-compose files

Change-Id: I7c81b11b9effb0eb89c1eaff515e9901e1096a4a
diff --git a/common/xos_common_config b/common/xos_common_config
index 76ba747..244e9ef 100644
--- a/common/xos_common_config
+++ b/common/xos_common_config
@@ -6,7 +6,7 @@
 name=xos
 user=postgres
 password=password
-host=localhost
+host=xos_db
 port=5432
 
 [api]