Adding simulation mode handler

Simulation mode allows you to fake your request. Only first level validations will be processed.

Author: octopush

src/Request/SmsCampaign/SendSmsCampaignRequest.php

@@ -35,6 +35,9 @@ class SendSmsCampaignRequest extends BaseRequest
     /** @var string */
     private $sendAt;
 
+    /** @var bool */
+    private $simulationMode;
+
     public function __construct()
     {
         $this->method = HttpMethodEnum::POST;
@@ -173,4 +176,20 @@ public function setSendAt(string $sendAt): void
     {
         $this->sendAt = $sendAt;
     }
+
+    /**
+     * @return bool
+     */
+    public function getSimulationMode(): bool
+    {
+        return $this->simulationMode;
+    }
+
+    /**
+     * @param bool $simulationMode
+     */
+    public function setSimulationMode(bool $simulationMode): void
+    {
+        $this->simulationMode = $simulationMode;
+    }
 }