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.protocol.ts

@@ -140,6 +140,10 @@ export abstract class ExtHostDataProtocolShape {
 	 * Runs a query for a provided query and returns result
 	 */
 	$runQueryAndReturn(handle: number, ownerUri: string, queryString: string): Thenable<sqlops.SimpleExecuteResult> { throw ni(); }
+	/**
+	 * Parses a T-SQL string without actually executing it
+	 */
+	$parseSyntax(handle: number, ownerUri: string, query: string): Thenable<sqlops.SyntaxParseResult> { throw ni(); }
 	/**
 	 * Gets a subset of rows in a result set in order to display in the UI
 	 */