Notable changes:
* The numerator / denominator parameters of AddMotion[HV]GaugeRate are
int in GoatGUIEngine but float in GUIEngine and PartsEngine.
* AnteaterADVEngine.ADVLogList_AddText has second parameter
(int WindowNo) since Oyako Rankan.
This also avoids using non-void functions where a void function is
expected. It is fine in most ABIs, but raises a runtime error in wasm32.