Issue#30 event channels

[AlexisChoupault]

• fixed event channels using pigeon
• created ci job android build test
• agp 8.13.2

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.21%. Comparing base (b3a128b) to head (b66cc5c).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #31   +/-   ##
=======================================
  Coverage   83.21%   83.21%           
=======================================
  Files           1        1           
  Lines         137      137           
=======================================
  Hits          114      114           
  Misses         23       23           

Flag	Coverage Δ
unittests	83.21% <ø> (ø)

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