Request ability to get the handler to have ESRequest and ESResponse classes like Xojo Web

[sworteu]

For th next Express releases i would like to focus on getting 2 classes so that it becomes easier to use Express coming from Xojo Web and back.

So i'd like to have the delegate being defined like:
RequestHandlerDelegate( req As ESRequest, res As ESResponse )

ES is the prefix for Express Server.
The ESRequest class limits (but would provide enough) the ability to make errors and provides easy request context data.
The ESResponse class provides everything needed to build a good response but keep it easy and clear to use.

This change would be major since it would require the delegate to change and the flow.

With this change it would be much easier to exchange code from Express and to Xojo Web.
With an additonal bonus is that the Xojo docs could probably become a partly reference as the code matches more.