Spawner, SpawnPoint and PlayerSpawn components, and base work on their systems

include/Game/Systems/PlayerSpawnSystem.h

@@ -0,0 +1,17 @@
+#include "Core/System.h"
+#include "Input/EInputCommand.h"
+#include "Events/ESpawnerSpawn.h"
+
+class PlayerSpawnSystem : public ImpureSystem
+{
+public:
+    PlayerSpawnSystem(EventBroker* eventBroker);
+
+    virtual void Update(World* world, double dt) override;
+
+private:
+    EventRelay<PlayerSpawnSystem, Events::InputCommand> m_OnInputCommand;
+    bool OnInputCommand(const Events::InputCommand& e);
+
+    std::vector<int> m_SpawnRequests;
+};