Add support for the mv command in NS

src/ScriptEditor/NetscriptDefinitions.d.ts

@@ -5813,6 +5813,26 @@ export interface NS extends Singularity {
    */
   atExit(f: () => void): void;
 
+  /**
+   * Move a file on the target server.
+   * @remarks
+   * RAM cost: 0 GB
+   *
+   * NS2 exclusive
+   *
+   * Move the source file to the specified destination on the target server.
+   *
+   * This command only works for scripts and text files (.txt). It cannot, however,  be used
+   * to convert from script to text file, or vice versa.
+   *
+   * This function can also be used to rename files.
+   * 
+   * @param host - Host of target server.
+   * @param source - Filename of the source file.
+   * @param destination - Filename of the destination file.
+   */
+  mv(host: string, source: string, destination: string): void;
+
   /**
    * Parse command line flags.
    * @remarks