Add mevdschee / php-crud-api / examples / clients / dbAuth Example

[pottertech]

I would like to see an examples/client/dbAuth folder added that contains a working version for using dbAuth rather than have to dig around the issues comments to try to get a working version. It should also contain a "crud_users.sql" file to help users with a working version of the database table. A few examples to also show how it works for adding a users, deleting a user, updating the password as well as a login and logout example.