Advertise ICE renomination option in SDP

[JoTurk]

Description

Advertise renomination ice-option when it's enabled. https://datatracker.ietf.org/doc/html/draft-thatcher-ice-renomination-01#section-3

continues pion/sdp#237 and #3306

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.04%. Comparing base (0f4f3a0) to head (d8828d6).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3317      +/-   ##
==========================================
+ Coverage   84.95%   85.04%   +0.09%     
==========================================
  Files          80       80              
  Lines        9478     9482       +4     
==========================================
+ Hits         8052     8064      +12     
+ Misses       1004      997       -7     
+ Partials      422      421       -1     

Flag	Coverage Δ
go	85.04% <100.00%> (+0.09%)	⬆️

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[philipch07]

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