* Add testWhoisNumerics, to check Modern exhaustively covers known numerics
* ircu2: Workaround for server name in testWhoisNumerics.
* testWhoisUser: Work around ircu2 restrictions on nick and username
* testWhoisNumerics: Add variant with authenticated user
* testWhoisNumerics: Add support for RPL_AWAY and RPL_WHOISSPECIAL
* testWhoisNumerics: Add variant where the WHOIS sender opers up first
* testWhoisUser: Also test with targets
* inspircd: Fix oper configuration
* Fix RPL_WHOISACTUALLY matching for Unreal.