added Prom role as tender owner

 tender_owner: Tender Owner
+prom_owner: Prom Owner
 users:
     Tender Owner:
         api_key: e9c3ccb8e8124f26941d5f9639a4ebc3
         broker: Quinta
+    Prom Owner:
+        broker: Prom
+        username: Promtest
+        browser:  chrome
+        position:  [0, 0]
+        size:  [640, 450]
     E-tender Viewer:
         broker: E-tender
         username: E-tendertest