Compatibility to D10

This module has been merged into the main Metatag module, please remove this module from your codebase and update your Metatag module to get the latest version.

Thanks @DamienMcKenna

@waldomero, might be worth mentioning this on the modules frontpage?

The maintainer hasn't been active on d.o for a while. I've offered to comaintain it ( 💬 Offer to comaintain Metatag Routes (to retire it) Fixed ) for the purpose of shutting it down.