add dux action 'resetShip'

src/lib/shipDux/index.js

@@ -25,6 +25,7 @@ const dux = new Updux({
     setShipReqs: null,
     setUITransform: null,
     resetLayout: null,
+    resetShip: null,
   },
 });
 
@@ -37,6 +38,8 @@ function resetUITransform(thing) {
   );
 }
 
+dux.setMutation("resetShip", () => () => dux.initial);
+
 dux.setMutation("resetLayout", () => resetUITransform);
 
 dux.setMutation("setShipMass", (mass) => u({ reqs: { mass } }));