fully implement KeepAlive behavior

src/client/handlers/KeepAliveHandler.cpp

@@ -0,0 +1,15 @@
+#include <client/handlers/KeepAliveHandler.h>
+
+namespace blitz {
+namespace client {
+
+KeepAliveHandler::KeepAliveHandler(network::EnetConnection& a_Connection, EnttWorld& a_World) :
+	protocol::PacketHandler(a_Connection, a_World) {
+	m_Slot.Connect(m_Connection.OnKeepAlive,
+		[this](const blitz::protocol::data::KeepAlive& a_KeepAlive) { m_Connection.SendKeepAlive(a_KeepAlive); });
+}
+
+KeepAliveHandler::~KeepAliveHandler() {}
+
+}  // namespace client
+}  // namespace blitz