Implement "$ipaddress" into "$all" if the "$all" entry consists of an IP pattern

[DandelionSprout]

I got an idea, though the implementation of it would likely be difficult, and it's a rather loose idea that wouldn't warrant an issue report.

$all has for some years now essentially been a combo of 5 different syntaxes: $doc, $popup, $inline-script, $inline-font, and no-$. But unless I've missed out on something important, it does not cover $ipaddress at the time of writing.

So if some sort of detection system was built and added to uBO to detect if an $all entry consists solely of an IP pattern, for example (but not limited to; and if it's RegEx detection) ^(\|\|?|://)[12]?\d\d?\.[12]?\d\d?\.[12]?\d\d?\.[12]?\d\d?\^\$all(,.*)?$, then the entry would also have $ipaddress covered in it.

So if an entry is for example ||123.45.67.89^$all, then the entry would also cover $all,ipaddress=123.45.67.89; so that essentially the IP $all entry contains the following matches:

||123.45.67.89^
||123.45.67.89^$doc
||123.45.67.89^$popup
||123.45.67.89^$inline-script
||123.45.67.89^$inline-font
!#if !env_chromium
$ipaddress=123.45.67.89
$doc,ipaddress=123.45.67.89
$popup,ipaddress=123.45.67.89
$inline-script,ipaddress=123.45.67.89
$inline-font,ipaddress=123.45.67.89
!#endif