Support for remote lock stores

[tomme87]

Right now lock is acquired only with SemaphoreStore or FlockStore.

I should be able to use a lock I have configured with symfony FrameworkBundle see https://symfony.com/doc/current/lock.html
Maybe a config option with named lock I want to use?

[DamienHarper]

@tomme87 thanks for the feedback, this is not implemented at the moment. Feel free to submit a PR if you feel brave, I'd be happy to review it ;)