Design UI for making docker-compose artifacts

Acceptance criteria:

• Design for generating docker-compose Artifacts through UI.
• Must support upload of docker-compose file, selection of path in which to install it on the device, and a boolean "unpinned" toggle.
  • Should think of a good checkbox label/help here. Ask Kristian, or if he's not around, ask Fabio.
• Some good way of differentiating between single-file and docker-compose Artifact generation. Maybe selection in UI, or possibly autodetection. Ask whoever is implementing MEN-3847 how they plan to implement separation between the two.