Added Magical Trait to Strikes

[squirrelkiller]

This is a quick and dirty update to make Animal Companion and Construct Companion strikes count as magical when they have the appropriate feats. This has become more necessary to ensure due to the recent addition of IWR in the core system.

All this does is add the following rule element where required:

{
  "definition": [
    "item:category:unarmed"
  ],
  "key": "AdjustStrike",
  "mode": "add",
  "property": "weapon-traits",
  "value": "magical"
}

[TikaelSol]

Added locally to go along with many other changes. Thanks!