added dev state to indicate early versions of CommandBot

src/structures/StateManager.ts

@@ -1,5 +1,6 @@
 export class StateManager {
     private _isRunning: boolean = false;
+    private readonly _unstable: boolean = true;
 
     get running() {
         return this._isRunning;
@@ -10,4 +11,8 @@ export class StateManager {
             this._isRunning = bool;
         }
     }
+
+    get dev() {
+        return this._unstable;
+    }
 }