added silverbullets, added gettimeout command

bot/lib/dateManager.ts

@@ -0,0 +1,17 @@
+export function buildTimeString(time1: number, time2: number) {
+  const diff = Math.abs(time1 - time2);
+  const timeobj = {
+    day: Math.floor(diff / (1000 * 60 * 60 * 24)),
+    hour: Math.floor((diff % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60)),
+    minute: Math.floor((diff % (1000 * 60 * 60)) / (1000 * 60)),
+    second: Math.floor((diff % (1000 * 60)) / 1000)
+  };
+  const stringarray: string[] = [];
+  for (const [unit, value] of Object.entries(timeobj)) {
+    if (value === 0) continue;
+    if (unit === 'second' && timeobj.day > 0) continue;
+    stringarray.push(`${value} ${unit}${value === 1 ? '' : 's'}`);
+  };
+  const last = stringarray.pop();
+  return stringarray.length === 0 ? last : stringarray.join(', ') + " and " + last;
+};