Added MouseInputHandler and firstPersonInputController to aid in creation of first person movement.

include/Engine/Input/FirstPersonInputController.h

@@ -0,0 +1,40 @@
+#ifndef FirstPersonInputController_h__
+#define FirstPersonInputController_h__
+
+#include "../GLM.h"
+#include "../Core/InputController.h"
+
+template <typename EventContext>
+class FirstPersonInputController : public InputController<EventContext>
+{
+public:
+    FirstPersonInputController(EventBroker* eventBroker, unsigned int playerID)
+        : InputController(eventBroker)
+        , m_PlayerID(playerID)
+    { }
+
+    const glm::quat Orientation() const { return m_Orientation; }
+
+    virtual bool OnCommand(const Events::InputCommand& e) override
+    {
+        if (m_PlayerID != e.PlayerID) {
+            return false;
+        }
+
+        if (e.Command == "Pitch") {
+            float val = glm::radians(e.Value);
+            m_Orientation = m_Orientation * glm::angleAxis<float>(-val, glm::vec3(1, 0, 0));
+        }
+
+        if (e.Command == "Yaw") {
+            float val = glm::radians(e.Value);
+		    m_Orientation = glm::angleAxis<float>(-val, glm::vec3(0, 1, 0)) * m_Orientation;
+        }
+    }
+
+private:
+    const unsigned int m_PlayerID;
+    glm::quat m_Orientation;
+};
+
+#endif