modify BasicHGWOptions definition to mark threads parameter as optional

this is used by hack, grow and weaken all of which dont require it to be defined

src/ScriptEditor/NetscriptDefinitions.d.ts

@@ -229,7 +229,7 @@ export interface AugmentationStats {
  */
 export interface BasicHGWOptions {
   /** Number of threads to use for this function. Must be less than or equal to the number of threads the script is running with. */
-  threads: number;
+  threads?: number;
   /** Set to true this action will affect the stock market. */
   stock?: boolean;
 }