Add template name to error message

[BernhardBaumrock]

Current error message:

ProcessWire\WireException

You don't have access to the template required to add pages here

Suggested improvement in ProcessPageAdd.module (add template name):

throw new WireException("You don't have access to the template required to add pages here ({$template->name})");

New error message:

ProcessWire\WireException

You don't have access to the template required to add pages here (my_template_name)