doc: add `added:` information for process
Checklist
-
documentation is changed or added -
the commit message follows commit guidelines
Affected core subsystem(s)
doc
Description of change
Added introduction version metadata in process.md
.
Most of the information is gleaned from changelogs. The rest is inferred from git history.
Omitted cpuUsage()
since it's not yet in a release.
Also omitted the streams, events and signals, since I didn't really think it made sense for those.