[OpenSIPS-Devel] [OpenSIPS/opensips] b2ccb7: dialog: add event_id_format param

[Răzvan Crainea]

  Branch: refs/heads/3.1
  Home:   https://github.com/OpenSIPS/opensips
  Commit: b2ccb71920e3c119f64e46bb192598d066bb6dd0
      https://github.com/OpenSIPS/opensips/commit/b2ccb71920e3c119f64e46bb192598d066bb6dd0
  Author: Razvan Crainea <razvan at opensips.org>
  Date:   2021-04-14 (Wed, 14 Apr 2021)

  Changed paths:
    M modules/dialog/dialog.c
    M modules/dialog/dlg_hash.c
    M modules/dialog/dlg_hash.h
    M modules/dialog/doc/dialog_admin.xml

  Log Message:
  -----------
  dialog: add event_id_format param

This parameter is used to specify the format of the dialog identifier in
the `E_DLG_STATE_CHANGED` event. It was added to prevent the event's
compatibility with previous 3.1 versions, but also allow the possibility
to have the id in a usable (hex or DB) form.
This is sort of backport of e3221aa1 and a fix of #2463