Crewed/uncrewed toggle button on actions/equipment in vehicle sheets broken on 2.1.4

[Gawdl3y]

The button to toggle the crewed/uncrewed status of an action or equipment in vehicle sheets does not do anything. No errors are output into the console when clicking it. I have reproduced this on a totally vanilla setup with no modules active and a completely fresh world.

Repro steps:

1. Create a new vehicle actor
2. Add an action to it
3. Click the crewed status toggle button on the new action in the list

[krbz999]

Seems like item.system.crewed is not a property on items anymore whatsoever. And secondly, the HP of items cannot be edited from the sheet at all either.

[krbz999]

Also seems like threshold and cover does not appear at all.

[arbron]

Seems like item.system.crewed is not a property on items anymore whatsoever. And secondly, the HP of items cannot be edited from the sheet at all either.

Strangely enough system.crewed was never defined in template.json, so it got overlooked in the conversion to data models.