Adding windows auth support to sql-migration and misc bug fixes. (#14816)

* - Added coming soon message for learn more.
- Potential fix for learn more message

* Renaming of controller to sqlMigrationService

* Surfacing some errors
-Azure account is stale error
-Migration Service creation error.

* Adding refresh azure token validation.

* Fixing some errors pointed during PR
-Fixing property names
-Fixing count

* Fixing migration status
- Adding special error handling for resource not found error
- Deleting unfound migrations from local cache
- Using prefetched migration status for view all

Misc fixes:
- Using SQL server version name instead of number
- Fixing Icons on sku recommendation page
- Fixing table column width in cutover dialog
- Adding spinner button to refresh.

* Fixing all strings in migration service page and dialog

* fixed a string error in create service dialog

* Adding source config page to migration to support windows auth
Some refactorings for sqlDatabaseTree (still WIP)

* refactoring assessments code 1
introducing new interface for server assessments

* Filtering out non windows sql vms
Retaining selections made by user on assessments dialog

* Fix compile errors on sqlDatabaseTree

* Exposing migration status errors in cutover dialog

* Updating extension verion

* Correcting typos
Fixing compilation erros
Removing en-us from url
Fixing function names
Make UI calls unblocking

* Unblocking dialog in case of failed assessments
Localizing string
removing blocking code from UI
Fixing comments

* Fixed broken assessment page logic

extensions/sql-migration/src/models/externalContract.ts

@@ -4,7 +4,7 @@
  *--------------------------------------------------------------------------------------------*/
 
 import * as azdata from 'azdata';
-import { SKURecommendation } from './product';
+import { MigrationTargetType } from './stateMachine';
 
 export interface Base {
 	uuid: string;
@@ -21,6 +21,15 @@ export interface GatherInformationRequest extends BaseRequest {
 	connection: azdata.connection.Connection;
 }
 
+export interface Checks {
+
+}
+
+export interface SKURecommendation {
+	product: MigrationTargetType;
+	checks: Checks;
+}
+
 export interface SKURecommendations {
 	recommendations: SKURecommendation[];
 }