Add service for Simple Google Maps

Created Merge Request.

Please review and feedback.

works fine.

• I would like you to add the GMaps service to the README. The description of the preprocess_field setting refers to a list of services found in the README. It should be kept up to date.
• The new code for klaro_preprocess_field does not check if the formatter is actually provided by the simple_gmap module, nor does it check if it is installed or if the GMaps service is active in klaro before creating the markup. If you can somehow limit the scope of the logic, I would prefer if you did that instead.

Thank you for feedback and testing.

I have added the information to the readme file.

I don't expect any security implications if we don't check whether the module is installed. If someone has access to the code and can manipulate field values, they can also inject code elsewhere. We just do the rendering and let the Klaro helper check the result.

So I set the state to RTBC.

Merged. Thank you for testing and feedback.

Automatically closed - issue fixed for 2 weeks with no activity.