feat(worker): Add support for configuring docker host settings

[Porsh33]

Reference to docker/for-linux#321 currently where are no way to use FUSE fs in docker container. Official manual (see one above) recommend to run container with --cap-add and --device options.

This PR add support some new Docker host options in worker config:

• --docker-addcaps -- Values to bypass docker run --cap-add=<value>
• --docker-mounts -- Global mount points. Very useful to prevent write docker.sock mount point for each builds
• --docker-devices -- Device redirection. Useful to redirect /dev/* into container. Need to works with fuse fs
• --docker-privileged -- Run build container in privileged mode. Bool, default False

All string options allow multiple choices. E.g.

abstruse-worker --docker-mounts "/var/log:/var/log" --docker-mounts "/tmp:/tmp"

[Porsh33]

Perhaps it's also worth adding support global ENV variables?

UPD. Found this issue: #496 I think i'll do it in separate PR