MxNotificationManager and MxParam initial work. (#78)

* MxNotificationManager initial work.

* Add .swp files to .gitignore.

* Checkpoint before anything too crazy with param

* Cleanup and add MxParam.

* Checkpoint for everything except MxNotificationManager::Register.

* Add int return type to MxCore::GetId instead of relying on implicit function nonsense.

* Add stlcompat.h so this can still be built on modern compilers, fix affected type size asserts.

* Switch to Mx types

* Add BUILD_COMPAT option to CMake so the project can still be built with modern compilers.

* Change vtable14 and vtable18 to Register and Unregister in MxTickleManager.

* Remove last unsigned int reference to id type.

* Remove MxList, use one inherited class per type. Improves accuracy again.

* Address compiler compatibility code review.

* Match MxNotificationManager::Register.

* Re-enable MxNotificationManager DECOMP_SIZE_ASSERT.

LEGO1/compat.h

@@ -11,6 +11,19 @@
 #define COMPAT_CONST
 #endif
 
+#define MSVC420_VERSION 1020
+
+// STL compatibility.
+#if defined(_MSC_VER) && _MSC_VER <= MSVC420_VERSION
+#include <STL.H>
+#else
+#include <algorithm>
+#include <list>
+using namespace std;
+template <class T>
+using List = list<T>;
+#endif
+
 // We use `override` so newer compilers can tell us our vtables are valid,
 // however this keyword was added in C++11, so we define it as empty for
 // compatibility with older compilers.