Feature - Sort components by docker compose "depends_on"

[MorningLightMountain713]

What this pull does

• When importing a docker compose file, it takes into account the depends_on of the services.
• Sorts the components by depends_on. I.e. The containers that are "depended on" are first in the list, so they get installed first. I.e if web depends_on mysql, mysql will get installed first.
• Can specify both long form and short form depends_on however, only the keys are used for long_form.
• Uses a DAG to resolve dependencies.
• Any cycles and the components are left in their original state. I.e. if you have a depends_on b and b depends_on a.
• Adds tests for topologicalSort.

[MorningLightMountain713]

All tests passing

[Cabecinha84]

Ack, nice work!