Add multi codec negotiation feature

[itzmanish]

Description

This extends PR #2632 and Adds the capability to have multi-codec negotiation just by setting a flag in the media engine.

Reference issue

Fixes #...

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.49%. Comparing base (feeeebf) to head (fb8ff15).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3018      +/-   ##
==========================================
+ Coverage   78.47%   78.49%   +0.01%     
==========================================
  Files          89       89              
  Lines       11037    11047      +10     
==========================================
+ Hits         8661     8671      +10     
+ Misses       1890     1889       -1     
- Partials      486      487       +1     

Flag	Coverage Δ
go	80.03% <100.00%> (+0.01%)	⬆️
wasm	63.61% <ø> (ø)

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