Added invoice master model file

app/Models/InvoiceMaster.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class InvoiceMaster extends Model
+{
+    use SoftDeletes;
+
+    protected $fillable = [
+        "receiving_plant",
+        "receiving_plant_name",
+        "transit_days",
+        "transport_name",
+        "created_at",
+        "created_by",
+        "updated_by",
+        "updated_at"
+    ];
+}