Demo Recording/Playback System

[Crystalwarrior]

This implements support for a demo system by recording networking packets for anything that is relevant to this system.
Evidence might be recorded in the future, but it can potentially overload the filesize of .demo files due to how fucking cursed evidence packets are.

TODO:

• an option to enable/disable demo recordings in the settings

Demo playback system with:

• Playing the demo file as it would play out in-client
• Playing the demo file skipping dead air that goes over a certain ms threshold (like 10000 for wait time more than 10s to be skipped)
• Rewinding
• Skipping forward
• Reading the demo file frame-by-frame
• Timeline you can navigate with notches etc.
• Playback from lobby as an option instead of doing it when present on a server

implements #317

[Crystalwarrior]

:|

[Crystalwarrior]

go to #337

[oldmud0]

gotos are evil