Plots of minutes

[fsktom]

Absolute and relative traces of Durations instead of plays

[fsktom]

Issues: Even with chrono 0.4 feature serde - Duration isn't serializable
-> I have to use .num_minutes()/.num_hours()/... to plot i64 (only whole minutes/hours) -> rounding/blocky trace
I could use seconds or milliseconds, but what use would that plot have (you can't read/translate seconds)
would be nice if I got that automatic nice scaling (like I get with Dates in (ISO 8601)-ish and display on the plot with plotly :/

Maybe plotly js has got some duration-esque value I could format to that provides auto scaling/display (e.g. for lower values minutes, for higher hours, days etc.)

blocky plot with hours

less blocky plot with minutes

perfect with milliseconds, since it's the resolution Spotify gives (ms_played in Entry), but it's in hundreds of millions just for endsong_0.json for Sabaton.... so it's gonna be billions for all the files which is not useful at all

[fsktom]

Maybe I could plot minutes and streams plots in one plot (two y-Axes)
https://plotly.com/python/multiple-axes/

See #26