fix(subplotlib): enable the "macros" feature for the time crate
Description
This allows me to build something that uses subplolib.
Fixes #285 (closed)
Checklist
-
You have read, and followed the guidance in, the CONTRIBUTING guide -
The MR content has run through a pipeline, or at least has pipelines enabled. -
There are no licence concerns with this contribution (The README clearly states Subplot is MIT-0)
Edited by Lars Wirzenius