Added AsyncTransaction API for IBConnection interface

Author: EduFrazao

src/index.ts

@@ -435,6 +435,7 @@ interface IDBConnection {
   ) => void;
   detach: (alias: string, callback: (result: StatementResult) => void) => void;
   transaction: (fn: (tx: Transaction) => boolean) => void;
+  asyncTransaction: (fn: (tx: AsyncTransaction) => Promise<boolean>) => void
   loadSqlFile: (
     location: string,
     callback: (result: FileLoadResult) => void
@@ -507,6 +508,9 @@ export const openDatabase = (
       transaction: (fn: (tx: Transaction) => boolean): void => {
         QuickSQLite.transaction(options.name, fn);
       },
+      asyncTransaction: (fn: (tx: AsyncTransaction) => Promise<boolean>): void => {
+        return QuickSQLite.asyncTransaction(options.name, fn);
+      },
       close: (ok: any, fail: any) => {
         try {
           QuickSQLite.close(options.name);