[Feature] Add Respawn Details Into Briefing

[cow-co]

Pull Request Description

When merged this pull request will:

• Add an entry to the briefing, containing the respawn settings for the mission, for the player's side.

Release Notes

• Under the Framework part of the briefing, there is a new Current Respawn Settings entry.
• No configuration needed beyond what is already there for the respawn framework.
• Fields that are not defined for the respawn will be marked as "Not set"
• Covers:
  • Respawn mode (friendly-named, eg. "Timed Waves, with Tickets")
  • Respawn Delay
  • Side tickets
  • player tickets

IMPORTANT

• Testing has been completed as neccessary, depending on the nature & impact of the changes. Tested locally and on the server, for opfor, blufor, indfor, with various commbinations of respawn settings.
• The Release Notes section below must be filled out appropriately to explain the changes made in this PR. This section will be used in Framework Changelogs.
• If the contribution affects the wiki, please include your changes in this pull request so the wiki is consistently updated.
• Contribution Guidelines are read, understood and applied.
• Title of this PR uses our standard template [Descriptor] - Add|Fix|Improve|Change|Make|Remove {changes}.

[cow-co]

Addresses Issue #202

[cow-co]

May make another PR for a similar thing, but with medical settings.

[cow-co]

Lord forgive me.

[cow-co]

for I have sinned.

[Bubbus]

I don't really see a better way to do this tbh, so good approach. Few minor things - fix yourself or I will in a year or two. tyvm

[Bubbus]

Use private keyword pls

[Bubbus]

Prefer to have these in respawn_macros.hpp so they're in the same place as the things they refer to.