Merge branch '2-add-optional-prefix-for-env-variables' into 'main'

Fix constructor

Closes #2

See merge request !4

index.d.ts

 export class Config {
-    constructor();
+    constructor(basePath?: string, envPrefix?: string);
     _reload(): void;
     _show(): any;
 }
\ No newline at end of file

package.json

 {
   "name": "@libs/config",
-  "version": "1.13.1",
+  "version": "1.13.2",
   "description": "Simple Config with ENV Support",
   "main": "index.js",
   "scripts": {