Agent configuration support classes (WIP) (#632)

* Additional SQL Agent config classes (WIP)

* Fix build breaks

* Clean up job step code

* Add VS Code build files

* Move changes to other machine

* More of the action execution classes

* More execution processing refactors

* More refactoring

* Disable tests for WIP merge

* Fix break on Release config

* Stage changes to other machine.

src/Microsoft.SqlTools.ServiceLayer/Security/Credential.cs

@@ -21,21 +21,8 @@ namespace  Microsoft.SqlTools.ServiceLayer.Security
     internal class Credential : ManagementActionBase
     {
 
-// #region Trace support
-//         private const string componentName = "Credential";
-
-//         public string ComponentName
-//         {
-//             get
-//             {
-//                 return componentName;
-//             }
-//         }
-// #endregion
-
 #region Constants
         private const int MAX_SQL_SYS_NAME_LENGTH = 128; // max sql sys name length
-        private const string PASSWORD_MASK_STRING = "**********";
 #endregion
 
 #region Variables
@@ -70,19 +57,16 @@ namespace  Microsoft.SqlTools.ServiceLayer.Security
         }
 #endregion
 
-#region Overrides SqlManagementUserControl
         /// <summary>
         /// called on background thread by the framework to execute the action
         /// </summary>
         /// <param name="node"></param>
-        public void OnRunNow(object sender)
+        public override void OnRunNow(object sender)
         {
             this.credentialData.SendDataToServer();
 
         }
 
-#endregion
-
         /// <summary>
         /// update logic layer based on content of user interface
         /// </summary>