Agent/improvements (#779)

* job step type and error message details change

* added newline for both environments

* checked for inner exceptions

* sorted imports

* added ability to change job owner

src/Microsoft.SqlTools.ServiceLayer/Agent/Common/AgentUtilities.cs

@@ -61,7 +61,8 @@ namespace Microsoft.SqlTools.ServiceLayer.Agent
                 EmailLevel = job.EmailLevel,
                 PageLevel = job.PageLevel,
                 EventLogLevel = job.EventLogLevel,
-                DeleteLevel = job.DeleteLevel
+                DeleteLevel = job.DeleteLevel,
+                Owner = job.Owner
             };
         }