Messenger queue implementation

Author: Steveb-p

src/bundle/Resources/config/services/locks.yaml

@@ -12,5 +12,8 @@ services:
     ibexa.messenger.lock_store.dbal:
         class: Symfony\Component\Lock\Store\DoctrineDbalStore
         arguments:
-            - '@ibexa.persistence.connection'
+            - '@ibexa.messenger.doctrine_connection'
             - db_table: ibexa_messenger_lock_keys
+
+    ibexa.messenger.doctrine_connection:
+        parent: 'doctrine.dbal.connection'

tests/integration/Resources/dama_doctrine.yaml

@@ -0,0 +1,3 @@
+dama_doctrine_test:
+    enable_static_connection:
+        default: true