Jobs - New step (WIP) (#1711)

* added jobs view toolbar

* create job command and dialog stub

* add tab content and wire up the provider

* fix the steps tab error

* create job dialog 6/15 changes

* general tab done

* success action and retries completed

* added failure action dropdown

* add notification tab checkbox events

* added AgentJobStepInfo objects in sqlops

* create job dialog - 0618 update 1

* added model save function

* width for controls and initial state for notification tab controls

* refresh master and changes to work with latest code

* fixed next and prev button positions

* new step dialog ui finished

* implemented parse button

* fix package file

* add validation and sub-items collections

* hook up the step creation dialog - step 1

* merged master

src/sql/workbench/api/node/sqlExtHost.api.impl.ts

@@ -384,6 +384,7 @@ export function createApiFactory(
 				ScriptOperation: sqlExtHostTypes.ScriptOperation,
 				WeekDays: sqlExtHostTypes.WeekDays,
 				NotifyMethods: sqlExtHostTypes.NotifyMethods,
+				JobCompletionActionCondition: sqlExtHostTypes.JobCompletionActionCondition,
 				AlertType: sqlExtHostTypes.AlertType,
 				window,
 				tasks,