Add GF geyser script (#749)

* Add GF geyser script

* remove uneeeded include

* const

dScripts/GfMaelstromGeyser.h

@@ -0,0 +1,17 @@
+#pragma once
+#include "CppScripts.h"
+
+class GfMaelstromGeyser final : public CppScripts::Script
+{
+public:
+	void OnStartup(Entity* self) override;
+	void OnTimerDone(Entity* self, std::string timerName) override;
+
+private:
+	const std::string m_StartSkillTimerName = "startSkill";
+	const float m_StartSkillTimerTime = 2.0;
+	const std::string m_KillSelfTimerName = "killSelf";
+	const float m_KillSelfTimerTime = 7.5;
+	const uint32_t m_SkillID = 607;
+	const uint32_t m_BehaviorID = 10500;
+};