Event detector debugging panel

[LDiazN]

This PR adds a streamlit web panel to debug and diagnose events from the event detector.

With this panel you can re-run the detector algorithm for any given input and check the results immediately. It will plot the cusums using an interactive Altair chart.

You can also filter the cusums by probe_asn and block_type.

It adds a new command to the oonipipeline CLI, the oonipipeline events-panel command to start the web server

Note that Streamlit is not a standard dependency, it's bundled with the analysis dependencies

The clickhouse URL parameter can be specified in the left side panel, it defaults to localhost

Some screenshots:

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.37%. Comparing base (3a180c2) to head (1c5d60d).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #169      +/-   ##
==========================================
- Coverage   83.51%   82.37%   -1.14%     
==========================================
  Files          85       85              
  Lines        5314     5334      +20     
==========================================
- Hits         4438     4394      -44     
- Misses        876      940      +64     

Flag	Coverage Δ
oonidata	77.86% <ø> (ø)
oonipipeline	84.95% <ø> (-1.81%)	⬇️

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