Slot quantity is now a computed value, added property viewer for slots

app/imports/api/creature/computation/engine/computeEndStepProperty.js

@@ -23,6 +23,7 @@ export default function computeEndStepProperty(prop, memo){
       computePropertyField(prop, memo, 'maxPrepared');
       break;
     case 'propertySlot':
+      computePropertyField(prop, memo, 'quantityExpected');
       computePropertyField(prop, memo, 'slotCondition');
       break;
     case 'roll':

app/imports/api/creature/computation/engine/evaluateCalculation.js

@@ -21,6 +21,9 @@ export default function evaluateCalculation({
     context,
     dependencies,
   };
+  if (typeof string !== 'string'){
+    string = string.toString();
+  }
   // Parse the string
   let calc;
   try {