chore: Physics Component abstraction and addition of tests (#1159)

* Make serialize actually virtual

yep

* Abstract to PhysicsComponent

Move shared functionality of all physics related classes to a base class.

Tested that there were no failed to unserialize errors when in main gameplay in Gnarled Forest or in a race.

Tested that 2 players were able to see each other in the above scenarios just fine as well.

* Update PhantomPhysicsComponent.cpp

* Add SimplePhysicsTest

* Add construction test

* Update SimplePhysicsComponentTests.cpp

* remove flags and fix override

* Update VendorComponent.h

dGame/dComponents/PhysicsComponent.h

@@ -0,0 +1,32 @@
+#ifndef __PHYSICSCOMPONENT__H__
+#define __PHYSICSCOMPONENT__H__
+
+#include "Component.h"
+#include "NiPoint3.h"
+#include "NiQuaternion.h"
+
+namespace Raknet {
+	class BitStream;
+};
+
+class PhysicsComponent : public Component {
+public:
+	PhysicsComponent(Entity* parent);
+	virtual ~PhysicsComponent() = default;
+
+	void Serialize(RakNet::BitStream* outBitStream, bool bIsInitialUpdate) override;
+
+	const NiPoint3& GetPosition() const { return m_Position; }
+	virtual void SetPosition(const NiPoint3& pos) { if (m_Position == pos) return; m_Position = pos; m_DirtyPosition = true; }
+
+	const NiQuaternion& GetRotation() const { return m_Rotation; }
+	virtual void SetRotation(const NiQuaternion& rot) { if (m_Rotation == rot) return; m_Rotation = rot; m_DirtyPosition = true; }
+protected:
+	NiPoint3 m_Position;
+
+	NiQuaternion m_Rotation;
+
+	bool m_DirtyPosition;
+};
+
+#endif  //!__PHYSICSCOMPONENT__H__