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

• 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 Advertising / Reading ICE trickle support #2898 (comment)

• 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 #2898

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.84%. Comparing base (c79463d) to head (536db69).
Report is 8 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (c79463d) and HEAD (536db69). Click for more details.

HEAD has 2 uploads less than BASE

Flag	BASE (c79463d)	HEAD (536db69)
go	2	0

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #3097       +/-   ##
===========================================
- Coverage   78.71%   63.84%   -14.88%     
===========================================
  Files          91       69       -22     
  Lines       11347     4251     -7096     
===========================================
- Hits         8932     2714     -6218     
+ Misses       1928     1404      -524     
+ Partials      487      133      -354     

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wasm	63.84% <ø> (ø)

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[ValorZard]

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