feat: Add mediajson SessionEndEvent.

[bgrozev]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 33.70%. Comparing base (c1ea8ca) to head (de1c9d0).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...n/src/main/kotlin/org/jitsi/mediajson/MediaJson.kt	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #227      +/-   ##
============================================
- Coverage     33.72%   33.70%   -0.03%     
  Complexity      162      162              
============================================
  Files            36       36              
  Lines          1352     1353       +1     
  Branches        136      136              
============================================
  Hits            456      456              
- Misses          863      864       +1     
  Partials         33       33              

Files with missing lines	Coverage Δ
...n/src/main/kotlin/org/jitsi/mediajson/MediaJson.kt	97.87% <0.00%> (-2.13%)	⬇️

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