Add English language support and update README with LangManager details

Author: Sandro642

readme.md

@@ -32,6 +32,13 @@ Hook -----------------------|
  - Coming Soon.
 ```
 ---
+## LangManager
+```
+ EN : Released - Latest Version
+ FR : Sorti - Dernière Version
+ ```
+
+---
 
 Stay informed about the latest features and updates of ConnectLib.
 

src/main/resources/lang/EN_US.lang

@@ -0,0 +1,13 @@
+# ConnectLib language file by Sandro642 (Sandraw)
+# Do not modify this file.
+
+#Lang: EN
+
+[annotation.package]
+discoverlistener.error: Error while discovering listeners.
+getclassesinpackage.error: Error while retrieving classes in package %package%, Exception: %exception%.
+
+[connectlib.class]
+initialise.routeclass: RouteClass cannot be null.
+initialise.catcherror: An error occurred during ConnectLib initialization, Exception: %exception%.
+getroute.error: Route %route% was not found.