create user role and menu, create seeder for first user and create crud role, menu and user

app/Models/Role.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Role extends Model
+{
+    protected $table = 'roles';
+    protected $fillable = [
+        'name',
+        'description'
+    ];
+
+    public function users(){
+        return $this->belongsToMany(User::class,'user_role')->withTimestamps();
+    }
+
+    public function menus(){
+        return $this->belongsToMany(Menu::class,'role_menu')->withTimestamps();
+    }
+}