emit ChannelClose and ChannelOpen when a client connects and disconnects

[aler9]

No description provided.

[codecov]

Codecov Report

Merging #71 (85359d9) into main (51190a4) will increase coverage by 0.39%.
The diff coverage is 93.61%.

@@            Coverage Diff             @@
##             main      #71      +/-   ##
==========================================
+ Coverage   81.49%   81.89%   +0.39%     
==========================================
  Files          26       26              
  Lines        2027     1994      -33     
==========================================
- Hits         1652     1633      -19     
+ Misses        295      282      -13     
+ Partials       80       79       -1     

Files Changed	Coverage Δ
pkg/reconnector/reconnector.go	89.47% <89.47%> (ø)
channel.go	85.58% <100.00%> (+2.70%)	⬆️
channel_provider.go	82.60% <100.00%> (ø)
endpoint_client.go	89.28% <100.00%> (+1.05%)	⬆️
endpoint_serial.go	64.51% <100.00%> (+8.51%)	⬆️
endpoint_server.go	81.25% <100.00%> (ø)
node.go	74.80% <100.00%> (+0.58%)	⬆️

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more