[feature] graph hours captured by day

[masukomi]

A simple vertical bar graph. Each bar represents 1 of whatever time unit was requested.

if you ask for 7 days you get 7 bars. 2 weeks 2 bars, etc.

each bar represents the total hours captured. I think the max should probably be ~18hrs ? I'm hoping folks aren't working more than 18hrs in a day (shudder at the thought of doctors with 24hr shifts). The problem with 24 is that it leaves a ton of empty space at the top for the vast vast majority of humans.

This will require a cli graphing library. We'll probably have to port something like this library i wrote in crystal unless something like this already exists in Raku.