NETSCRIPT: Greatly speed up script launching, and remove the limitation unique args per script (#440)

* Remove the limitation unique args per script
* Internal changes to how runningScripts are stored on the server, to make common usage faster.

src/utils/JSONReviver.ts

@@ -88,7 +88,7 @@ export function Generic_fromJSON<T extends Record<string, any>>(
   if (keys) {
     for (const key of keys) {
       const val = data[key];
-      if (val) obj[key] = val;
+      if (val !== undefined) obj[key] = val;
     }
     return obj;
   }