Add Advertising / Reading ICE trickle support

[ValorZard]

Description

Figured I'd try my hand at dealing with this. I'll be honest and say I don't FULLY understand what this is for, since pion already supports trickle ICE, but since this IS part of the spec, might as well.

This is nowhere near done (I will also have to do a pull request to the SDP repo to finish the feature), but I do have some questions

• [x] the "a=ice-options:tickle" seem to be related to ice2? Whatever that is (see https://datatracker.ietf.org/doc/html/rfc9725#section-4.3.3) ~~Does that mean I have to tack on ice2 to the attribute?~~ Resolved, it just tells us what version of ICE we are using https://github.com/pion/webrtc/issues/2898#issuecomment-2800142318

• [x] how exactly would i add the attribute? I guess I just add a constant here and be done with it https://github.com/pion/sdp/blob/c395deb80b693c4a4f5b28d1ce435f27fa2bc40e/jsep.go#L14

Reference issue

Fixes https://github.com/pion/webrtc/issues/2898

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 84.05%. Comparing base (71b8a13) to head (c736355). :warning: Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3097      +/-   ##
==========================================
- Coverage   84.07%   84.05%   -0.03%     
==========================================
  Files          80       80              
  Lines        9076     9080       +4     
==========================================
+ Hits         7631     7632       +1     
- Misses       1023     1025       +2     
- Partials      422      423       +1     

Flag	Coverage Δ
go	84.05% <100.00%> (-0.03%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

:rocket: New features to boost your workflow:

• :snowflake: Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• :package: JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[ValorZard]

I think this is ready to be reviewed, pretty sure this is the api changes needed

[JoeTurki]

@ValorZard do you want to merge this for v5.2 or should it wait for the next release?

[ValorZard]

Uh... im down either way

[JoeTurki]

@ValorZard Okay, Cool, thank you, I'll update this and get it ready for 5.2.