Add RateLimit

src/classes/rate-limit.ts

@@ -0,0 +1,15 @@
+import {IRateLimit, OctokitRateLimit} from '../interfaces/rate-limit';
+
+export class RateLimit implements IRateLimit {
+  readonly limit: number;
+  readonly remaining: number;
+  readonly reset: Date;
+  readonly used: number;
+
+  constructor(rateLimit: Readonly<OctokitRateLimit>) {
+    this.limit = rateLimit.limit;
+    this.remaining = rateLimit.remaining;
+    this.used = rateLimit.used;
+    this.reset = new Date(rateLimit.reset * 1000);
+  }
+}