WIP: Adding support for zeroconf

[Debilski]

This commit adds basic support for zeroconf-based networking.

Instead of a player location, pelita now understands the keyword SCAN to search for remote players that advertise themselves via zeroconf:

pelita ./own_player SCAN

A zeroconf-based remote player can be started with the argument --advertise like so:

pelita-player --advertise --remote ./some_bot.py tcp://192.168.1.23:10027

Demo:

https://user-images.githubusercontent.com/216179/168391205-0d130500-2295-47e0-92bb-9b4883e43d95.mov

Commit needs https://github.com/jstasiak/python-zeroconf and https://github.com/Textualize/rich (eye-candy) to run.

Not sure if we can call our service _pelita-player._tcp. For IANA correctness, we might want to create a uuid.

[codecov-commenter]

Codecov Report

Merging #743 (0870a64) into main (d5f4bc6) will increase coverage by 0.11%. The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #743      +/-   ##
==========================================
+ Coverage   85.55%   85.67%   +0.11%     
==========================================
  Files          21       21              
  Lines        2291     2345      +54     
==========================================
+ Hits         1960     2009      +49     
- Misses        331      336       +5     

Impacted Files	Coverage Δ
pelita/player/FoodEatingPlayer.py	87.50% <0.00%> (-6.25%)	:arrow_down:
pelita/tournament/__init__.py	72.78% <0.00%> (-0.65%)	:arrow_down:
pelita/tournament/roundrobin.py	100.00% <0.00%> (ø)

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[Debilski]

Merging as a beta feature.