Fixed missing estimate factory

Author: stephangroen

src/Picqer/Financials/Moneybird/Moneybird.php

@@ -5,6 +5,7 @@
 use Picqer\Financials\Moneybird\Entities\ContactCustomField;
 use Picqer\Financials\Moneybird\Entities\CustomField;
 use Picqer\Financials\Moneybird\Entities\DocumentStyle;
+use Picqer\Financials\Moneybird\Entities\Estimate;
 use Picqer\Financials\Moneybird\Entities\FinancialAccount;
 use Picqer\Financials\Moneybird\Entities\FinancialMutation;
 use Picqer\Financials\Moneybird\Entities\GeneralDocument;
@@ -92,6 +93,15 @@ public function documentStyle($attributes = [])
         return new DocumentStyle($this->connection, $attributes);
     }
 
+    /**
+     * @param array $attributes
+     * @return Estimate
+     */
+    public function estimate($attributes = [])
+    {
+        return new Estimate($this->connection, $attributes);
+    }
+
     /**
      * @param array $attributes
      * @return FinancialAccount