Animation part 3: per-window animations

[yshui]

Use it like this:

rules = ({
    match = "...";
    animations = ({
        triggers = ["open"];
        # animation script
    });
});

Leave the script empty to disable animation for that trigger.

[codecov]

Codecov Report

Attention: Patch coverage is 95.83333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 52.86%. Comparing base (567c0ba) to head (4777327).

Files	Patch %	Lines
src/config_libconfig.c	88.88%	1 Missing ⚠️
src/wm/win.h	66.66%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             next    #1303   +/-   ##
=======================================
  Coverage   52.85%   52.86%           
=======================================
  Files          64       64           
  Lines       14011    14020    +9     
=======================================
+ Hits         7406     7411    +5     
- Misses       6605     6609    +4     

Files	Coverage Δ
src/config.h	30.00% <100.00%> (ø)
src/picom.c	64.60% <100.00%> (-0.11%)	⬇️
src/wm/win.c	78.13% <100.00%> (ø)
src/config_libconfig.c	57.31% <88.88%> (+0.04%)	⬆️
src/wm/win.h	92.85% <66.66%> (-1.18%)	⬇️

... and 1 file with indirect coverage changes

[pijulius]

This looks/works great, thank you so much! now we can go crazy with any animation for any kind of window :)