Add H266 de/packetizer

[Juliapixel]

Description

Implement RFC 9328 - RTP Payload Format for Versatile Video Coding

resolves #346

[codecov]

Codecov Report

❌ Patch coverage is 77.83934% with 80 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.43%. Comparing base (1f90ade) to head (3ac2fd4).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
codecs/h266_packet.go	77.83%	46 Missing and 34 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #347      +/-   ##
==========================================
- Coverage   90.97%   89.43%   -1.55%     
==========================================
  Files          27       28       +1     
  Lines        2716     3077     +361     
==========================================
+ Hits         2471     2752     +281     
- Misses        171      217      +46     
- Partials       74      108      +34     

Flag	Coverage Δ
go	89.43% <77.83%> (-1.55%)	⬇️

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[JoTurk]

This is amazing julia really excited to have you involved <3
I'm reviewing and testing this tonight.

[JoTurk]

Thank you a lot, and thank you for all the fixes <3

[JoTurk]

Thank you for making the APIs private, you can merge squash merge when you want to :)

[JoTurk]

I verified this with uvgRTP.