* feat(settings): add setting to disable device mapping for regular users
* feat(settings): introduce device mapping service
* feat(containers): hide devices field when setting is on
* feat(containers): prevent passing of devices when not allowed
* feat(stacks): prevent non admin from device mapping
* feat(stacks): disallow swarm stack creation for user
* refactor(settings): replace disableDeviceMapping with allow
* fix(stacks): remove check for disable device mappings from swarm
* feat(settings): rename field to disable
* feat(settings): supply default value for disableDeviceMapping
* feat(container): check for endpoint admin
* style(server): sort imports