Add ide links

[mortenscheel]

I know you rejected #186 but I hope you'll consider this PR for a couple of reasons:

• This implementation is a lot simpler and doesn't require any changes to php config.
• Lots of other popular packages provide ide links (e.g. ignition, laravel-debugbar and whoops) so the demand for this feature is growing.

This is just a bare minimum proof of concept to check if you're open to the idea. If you are, I'd be happy to add support for other editors, like Whoops does: https://github.com/filp/whoops/blob/c83e88a30524f9360b11f585f71e6b17313b7187/src/Whoops/Handler/PrettyPageHandler.php#L109-L125