Move more code from the http module into the core server. This

Move more code from the http module into the core server.  This
is core code, basically the default handler, the default input
and output filters, and all of the core configuration directives.
All of this code is required in order for the server to work, with or
without HTTP.  The server is closer to working without the HTTP
module, although there is still more to do.

I tried to fix Windows, but somebody should probably make sure I did
it correctly.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@88449 13f79535-47bb-0310-9956-ffa450edef68