register macros/renderers per WikiEngine instance
description
Besides having static macros/renderers, I think it would be usefull to have macros/renderers registered within the WikiEngine instance (per object instance, not static). For example, I have an application which renders different syntax in different places, so I need different configurations within the same thread. Also, I think this option would make it easier to configure the WikiEngine using DI containers.
Maybe I'm missing something and this feature is already possible with the current code.
PS: Excelent project! Keep it going!