Создал класс Truck

related #2

src/Truck.ts

+export class Truck {
+    id: number;
+    name: string;
+    driver: Driver;
+    private _state: TruckState;
+    private _stringState: string;
+
+    constructor (id: number, name: string, driver: Driver) {
+        this.id = id;
+        this.name = name;
+        this.driver = driver;
+        this._state = new BaseState();
+        this._stringState = this._state.name;
+    };
+};
\ No newline at end of file