Improve CSW Policy generation by outsourcing the Hostnames into Patternsets

[progS1m]

Is your feature request related to a problem? Please describe.
If you have a huge list of hosts inside one Ingress for example to server multiple Top-Level-Domains, there is a max limit as of the policy length has a fixed size limit.

The policy gets with each host longer until you exceed a limit:

(HTTP.REQ.HOSTNAME.SERVER.EQ("www.booksample.ca")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.at")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.be")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.ch")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.co.uk")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.com")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.com.au")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.cz")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.de")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.es")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.fi")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.fr")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.hr")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.ie")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.in")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.it")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.nl")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.no")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.se")||HTTP.REQ.HOSTNAME.SERVER.EQ("partners.sampleusa.com")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.pt")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.dk")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.ee")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.pl")||HTTP.REQ.HOSTNAME.SERVER.EQ("www.sample.ru"))&&(HTTP.REQ.URL.PATH.SET_TEXT_MODE(IGNORECASE).STARTSWITH("/mypath"))

same applies if you have to many paths in a httproute etc. But at least there it is possible to work with wildcards so most of the time no problem.

Describe the solution you'd like
Improve the mechanism on how the policies are created by CIC. Suggestion store all domains into a patternset and reference it?

Describe alternatives you've considered
Split Ingress into multiple ingresses. Not the best, as it produces more policies.