libtmux: Improved options and hooks

[tony]

Changes

libtmux: Improved options

poetry add "git+https://github.com/tmux-python/libtmux.git#improved-options

• Improved option management, add hook management libtmux#516

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 70.24%. Comparing base (bc4cb72) to head (bfdf0d0).
⚠️ Report is 685 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #925   +/-   ##
=======================================
  Coverage   70.24%   70.24%           
=======================================
  Files          26       26           
  Lines        1936     1936           
  Branches      365      365           
=======================================
  Hits         1360     1360           
  Misses        456      456           
  Partials      120      120           

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[tony]

Closing — unified options have since landed in libtmux mainline, so
this PR's premise (rename set_window_option→set_option,
show_window_option→_show_option, etc., gated behind a libtmux
feature branch) is no longer load-bearing. The libtmux pin
git+https://github.com/tmux-python/libtmux.git#improved-options
also points at a branch that no longer exists upstream (404).

If any tmuxp-side adaptation is still needed against released libtmux,
it should be a fresh PR off current master with a normal versioned
libtmux dependency.