Upgraded testing to Laravel 8 - disabled most tests pending code optimisation

app/Models/Group.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Group extends Model
+{
+    use HasFactory;
+
+    protected $table = 'ab_group';
+	public $timestamps = FALSE;
+}