Created the client program's framework

There are six scenes here, each of which representing roughly one part of
the final program's backbone.

client/lobby.cpp

@@ -0,0 +1,69 @@
+#include "lobby.hpp"
+
+#include <iostream>
+
+using namespace std;
+
+//-------------------------
+//Public access members
+//-------------------------
+
+Lobby::Lobby() {
+#ifdef DEBUG
+	cout << "entering Lobby" << endl;
+#endif
+}
+
+Lobby::~Lobby() {
+#ifdef DEBUG
+	cout << "leaving Lobby" << endl;
+#endif
+}
+
+//-------------------------
+//Frame loop
+//-------------------------
+
+void Lobby::FrameStart() {
+	//
+}
+
+void Lobby::Update(double delta) {
+	//
+}
+
+void Lobby::FrameEnd() {
+	//
+}
+
+void Lobby::Render(SDL_Surface* const screen) {
+	//
+}
+
+//-------------------------
+//Event handlers
+//-------------------------
+
+void Lobby::MouseMotion(SDL_MouseMotionEvent const& motion) {
+	//
+}
+
+void Lobby::MouseButtonDown(SDL_MouseButtonEvent const& button) {
+	//
+}
+
+void Lobby::MouseButtonUp(SDL_MouseButtonEvent const& button) {
+	//
+}
+
+void Lobby::KeyDown(SDL_KeyboardEvent const& key) {
+	switch(key.keysym.sym) {
+		case SDLK_ESCAPE:
+			QuitEvent();
+			break;
+	}
+}
+
+void Lobby::KeyUp(SDL_KeyboardEvent const& key) {
+	//
+}