Rereferenced PubSub
Added base class "SubkitModule" that should be implemented by each module. The base class keeps the Subkit instance and offer some methods for common task.
Added test project and test skeletons
Added FromJsonAsync method to JsonSerializeExtentions.
Added some static resources. There is a problem popping up. Some routes go like "/foo/:bar/lulz" which can not be expressed with a string. Maybe a format string would be a better decisions here or maybe a factory which generates functions or actions depending on the route and the parameters.
Added class skeletons for some more modules.