Add user tag to inputs procstat

[ojle]

Feature Request

Opening a feature request kicks off a discussion.

Proposal:

Add user tag to procstat tags
Uid already can be obtained from gopsutil/process, and the username itself can be obtained with something like:
id -nu ${Uid}

Current behavior:

Currently no user tag is added to the procstat when running pattern as match

Desired behavior:

Add user tag to procstat

Use case: [Why is this important (helps with prioritizing requests)]

When running procstat with pattern where multiple processes are gathered, it's good to know which user is running the process