Adding support for AAD connections in import wizard (#16759)

* Adding support for aad connections in import extension

* Adding support for AAD by passing azure account token

* Adding a test for aad connections and fixing broken tests

* removing extra await

extensions/import/src/services/contracts.ts

@@ -78,6 +78,11 @@ const insertDataRequestName = 'flatfile/insertData';
 export interface InsertDataParams {
 	connectionString: string;
 	batchSize: number;
+	/**
+	 * For azure MFA connections we need to send the account token to establish a connection
+	 * from flatFile service without doing Oauth.
+	 */
+	azureAccessToken: string | undefined;
 }
 
 export interface InsertDataResponse {