report.pl#425

Many small fixes and updates. No major features, but perhaps worth mentioning that, if the XML file name looks like something-usp.xml, or if the new --usp option is specified, then options appropriate for generating USP data model reports will be enabled automatically.

Reminder: the latest BBF report tool (report.pl) is always available in DockerHub at broadbandforum/report-pl:latest. Release nnn will also (starting with release 425) be available in the nnn tag.