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/api/azure.ts

@@ -50,7 +50,21 @@ export async function getAvailableSqlServers(account: azdata.Account, subscripti
 	return result.resources;
 }
 
-export type SqlVMServer = AzureProduct;
+export type SqlVMServer = {
+	properties: {
+		virtualMachineResourceId: string,
+		provisioningState: string,
+		sqlImageOffer: string,
+		sqlManagement: string,
+		sqlImageSku: string
+	},
+	location: string,
+	id: string,
+	name: string,
+	type: string,
+	tenantId: string,
+	subscriptionId: string
+};
 export async function getAvailableSqlVMs(account: azdata.Account, subscription: Subscription): Promise<SqlVMServer[]> {
 	const api = await getAzureCoreAPI();
 	const path = `/subscriptions/${subscription.id}/providers/Microsoft.SqlVirtualMachine/sqlVirtualMachines?api-version=2017-03-01-preview`;
@@ -331,6 +345,7 @@ export interface StartDatabaseMigrationRequest {
 			},
 		},
 		sourceSqlConnection: {
+			authentication: string,
 			dataSource: string,
 			username: string,
 			password: string