implement all DLL exports (as TODOs)

Now we can use our own compiled LEGO1.LIB rather than one generated from the original. Also implements a script that tests them to help ensure future commits don't break them.

LEGO1/legogamestate.cpp

@@ -0,0 +1,45 @@
+#include "legogamestate.h"
+
+// OFFSET: LEGO1 0x10039550
+LegoGameState::LegoGameState()
+{
+  // TODO
+}
+
+// OFFSET: LEGO1 0x10039720
+LegoGameState::~LegoGameState()
+{
+  // TODO
+}
+
+// OFFSET: LEGO1 0x10039c60
+long LegoGameState::Load(unsigned long)
+{
+  // TODO
+  return 0;
+}
+
+// OFFSET: LEGO1 0x10039980
+long LegoGameState::Save(unsigned long p)
+{
+  // TODO
+  return 0;
+}
+
+// OFFSET: LEGO1 0x1003a2e0
+void LegoGameState::SerializePlayersInfo(short p)
+{
+  // TODO
+}
+
+// OFFSET: LEGO1 0x1003cdd0
+void LegoGameState::SerializeScoreHistory(short p)
+{
+  // TODO
+}
+
+// OFFSET: LEGO1 0x10039f00
+void LegoGameState::SetSavePath(char *p)
+{
+  // TODO
+}