added leave request, profile and staff members controllers

app/Models/StaffDependent.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class StaffDependent extends Model
+{
+    protected $table = 'staff_dependents';
+    protected $guarded = [];
+
+    public function staff()
+    {
+        return $this->belongsTo(StaffMember::class, 'staff_id');
+    }
+}