please add !include option

[Mariusthvdb]

trying to use an include:

  - path: default_view
    title: Ruimtes overzicht
    icon: mdi:view-grid
    cards:
      - !include /config/lovelace/includes/include_person_badge_card.yaml

results in:

while this is the accepted yaml throughout?

---

btw, since this is the first issue in this repo:

THANKS for creating this, really very very nice, having a lot of fun with it already, and I expect we haven't seen the end of its development ;-)