Add timing to runner

run.ts

···
   `Running ${bold(moduleName)} with part ${bold(String(part))}...`,
 );
 
+console.time("solveTime");
 let output;
 switch (part) {
   case "1":
···
     output = await module.solvePart2(input);
     break;
 }
+console.timeEnd("solveTime");
 
 console.log(bold("Got output:"));
 console.log(output);