Add a shared-credentials quirk from dq.com to dairyqueen.com (#943)

Author: rmondello

quirks/shared-credentials.json

@@ -232,6 +232,15 @@
             "ironvest.com"
         ]
     },
+    {
+        "from": [
+            "dq.com"
+        ],
+        "to": [
+            "dairyqueen.com"
+        ],
+        "fromDomainsAreObsoleted": true
+    },
     {
         "shared": [
             "drivethrucards.com",