tool_writeout: add URL component variables

Output specific components from the used URL. The following variables
are added for this purpose:

url.scheme, url.user, url.password

tool_writeout: add URL component variables

Output specific components from the used URL. The following variables
are added for this purpose:

url.scheme, url.user, url.password, url.options, url.host, url.port,
url.path, url.query, url.fragment, url.zoneid

Add the following for outputting parts of the "effective URL":

urle.scheme, urle.user, urle.password, urle.options, urle.host, urle.port,
urle.path, urle.query, urle.fragment, urle.zoneid

Added test 423 and 424 to verify.

Closes #10853

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