Setup basic Alpaca action fetch and test.

src/alpaca/actions.ts

@@ -37,7 +37,8 @@ export class AlpacaActionProvider {
                         activity.side === "buy" ? ActionSide.Buy : ActionSide.Sell,
                         parseFloat(activity.price)
                     );
-                })
+                }),
+                undefined
             );
         }).catch((err) => {
             return err;