SYN-10728: Add inet:whois:iprec:org and :org:name properties

[invisig0th]

Summary

• Add inet:whois:iprec:org (ou:org) and inet:whois:iprec:org:name (ou:name) to explicitly capture the organization that registered an IP network.
• inet:whois:iprec:registrant remains deprecated (unchanged).

Ref: SYN-10728

Test plan

• test_whois_iprec extended to set/check :org and :org:name
• Full synapse/tests/test_model_inet.py passes locally (71/71)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.79%. Comparing base (fd69b15) to head (18b985d).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4954      +/-   ##
==========================================
+ Coverage   97.75%   97.79%   +0.03%     
==========================================
  Files         299      299              
  Lines       63362    63362              
==========================================
+ Hits        61942    61965      +23     
+ Misses       1420     1397      -23     

Flag	Coverage Δ
linux	97.73% <ø> (+0.03%)	⬆️
linux_replay	93.50% <ø> (+<0.01%)	⬆️

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