C++ Network Library Code

Merging user() and password() into user_info() and simplifying parsing grammar for HTTP urls.

this is incomplete and it is intended to only provide example spirit code for Dean (i was tired of sitting on it)

Adding support for default https port.

Adding support for port parsing.

Fixing for the interim the parsing of URLs.

Initial (broken) support for username and password parsing in HTTP URLs.

Adding additional checks and support for HTTP URL part inspections.

Adding initial support for parsing HTTP URLs.

Additional files cleanup.

Initial implementation of base basic_url template, according to RFC 1738.