feat(logs): enhance the logs and add a prefix with the issue number (#222)

* feat(logs): enhance the logs and add a prefix with the issue number

* chore: use camelCase for constants

use the new logger for the new code due to the rebase

src/classes/issue-logger.ts

@@ -0,0 +1,31 @@
+import * as core from '@actions/core';
+import {Issue} from '../IssueProcessor';
+import {Logger} from './logger';
+
+export class IssueLogger implements Logger {
+  private readonly _issue: Issue;
+
+  constructor(issue: Readonly<Issue>) {
+    this._issue = issue;
+  }
+
+  warning(message: Readonly<string>): void {
+    core.warning(this._prefixWithIssueNumber(message));
+  }
+
+  info(message: Readonly<string>): void {
+    core.info(this._prefixWithIssueNumber(message));
+  }
+
+  error(message: Readonly<string>): void {
+    core.error(this._prefixWithIssueNumber(message));
+  }
+
+  private _prefixWithIssueNumber(message: Readonly<string>): string {
+    return `[#${this._getIssueNumber()}] ${message}`;
+  }
+
+  private _getIssueNumber(): number {
+    return this._issue.number;
+  }
+}