(C++) Adds a Wwise Authoring plug-in and a Sound Engine plug-in to a plug-in container.
Creates a custom namespace with custom plug-in info, that contains the generated plug-in info structure. Then, statically points it to the next pointer for the container.
This uses the Sound Engine part to retrieve the plug-in information (Company id, Plug-in ID and Plug-in Type). It also adds up the Sound Engine's registration structure, so the host can initialize this part on first instantiation.