Data explorer/context menu initial (#6264)

* fixed context for data explorer

* added more files

* initial servers and database context menu actions finished

* added all actions for servers and databases with correct conditions

* added nodetype and nodelabel for subtype actions

* added nodeinfo logic to oe shim

* fixed context for cms

* added all scripting actions to data explorer

* review comments

* fix import

* fix correct context key

* removed unused import

* separate PR for commands and menus added

* rename mssql context menu nodes

* remove command id constants

src/sql/workbench/api/common/sqlExtHostTypes.ts

@@ -191,6 +191,11 @@ export enum StepCompletionAction {
 	GoToStep = 4
 }
 
+export enum ExtensionNodeType {
+	Server = 'Server',
+	Database = 'Database'
+}
+
 export interface IComponentShape {
 	type: ModelComponentTypes;
 	id: string;