feat: Add types (#41)

Author: mskelton

index.d.ts

@@ -0,0 +1,9 @@
+import type { Rule } from 'eslint';
+
+declare const plugin: {
+  rules: {
+    [key: string]: Rule.RuleModule;
+  };
+};
+
+export = plugin;

package.json

@@ -3,6 +3,7 @@
   "version": "v1.5.5",
   "description": "",
   "main": "index.js",
+  "types": "index.d.ts",
   "repository": {
     "type": "git",
     "url": "https://github.com/MelvinVermeer/eslint-plugin-no-relative-import-paths"