Support ISO 8601 timezoned datetime format

Hi,

First of all, thanks for this awesome project. I'm using this nice and simple PHP CRUD for the back-end of an Angular Web App, together with a MYSQL database.

The issue I'm currently having is that when I'm trying to POST a new object with a date(time) type, it throws an error.
SQLSTATE[22007]: Invalid datetime format: 1292 Incorrect datetime value: '2018-09-01T13:41:41.191Z' for column 'start_date' at row 1". I did some research and discovered that MYSQL expects a format like Y-m-d H:i:s for a datetime type.

I would prefer to solve this issue on PHP/back-end side instead of trying to fix it in Angular. Is there any quick/ready solution to his, or do I need to manually dig into the code and try to fix this?

Thanks!
Jérémy