[OpenSIPS-Devel] [OpenSIPS/opensips] 0e8139: stats: add support for grouping statistics in core

[Răzvan Crainea]

  Branch: refs/heads/master
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 0e81390c4a599c0f9c705b58368563371e67187b
      https://github.com/OpenSIPS/opensips/commit/0e81390c4a599c0f9c705b58368563371e67187b
  Author: Razvan Crainea <razvan at opensips.org>
  Date:   2021-05-20 (Thu, 20 May 2021)

  Changed paths:
    M core_stats.c
    M modules/prometheus/prometheus.c
    M pt_load.c
    M statistics.c
    M statistics.h

  Log Message:
  -----------
  stats: add support for grouping statistics in core

Use the statistics groups to dump prometheus stats in a more
prometheus-friendly interface.
Suggested by Ovidiu Sas(@ovidiusas on GitHub) in #2482