add options example file for the latest typeorm

[Styunlen]

Noticed that the module typeorm is out of date.And the cli of it need to give parameters "-d datasource options".So I create a example of this option file. But module updated also with api changes.I'm willing to follow your next step of this project.💐💐💐

[app-generator]

Hello @Styunlen

Thank you for your contribution. We will review the changes and get back.

🚀🚀