add integration test

Docker-DCO-1.1-Signed-off-by: Tibor Vass <teabee89@gmail.com> (github: tiborvass)
rename TestVolumeWithSymlink to TestCreateVolumeWithSymlink and remove run_tests folder

Docker-DCO-1.1-Signed-off-by: Tibor Vass <teabee89@gmail.com> (github: tiborvass)
expose unresolved path for volumes and resolve symlink in container.getResourcePath

Docker-DCO-1.1-Signed-off-by: Tibor Vass <teabee89@gmail.com> (github: tiborvass)
daemon: *: updated getResourcePath and getRootResourcePath signatures

This patch updates container.getResourcePath and container.getRootResourcePath
to return the error from symlink.FollowSymlinkInScope (rather than using utils).

Docker-DCO-1.1-Signed-off-by: Aleksa Sarai <cyphar@cyphar.com> (github: cyphar)

Remove Inject to help rebase

Docker-DCO-1.1-Signed-off-by: Tibor Vass <teabee89@gmail.com> (github: tiborvass)

Docker-DCO-1.1-Signed-off-by: cyphar <cyphar@cyphar.com> (github: tiborvass)
fix bug in getRootResourcePath in previous commit

Docker-DCO-1.1-Signed-off-by: Tibor Vass <teabee89@gmail.com> (github: tiborvass)
Merge pull request #6066 from tiborvass/5693-volumes-from-symlink-path

5693 volumes from symlink path