Backport list, playerraw, playerpreset broadcast commands from TGM

[TBG1000]

Issue:

The list, playerraw and playerpreset broadcast commands no longer exist.

Background:

TGM had commands which allowed staff members with the respective permission(s) to:

• /broadcast list
  List available preset broadcasts

• /broadcast playerraw <player> <message>
  Broadcast raw text to a target player, with support for color codes and decorators (bold, italics, etc)

• /broadcast playerpreset <player> <broadcast id> [args]
  Broadcast a preset to a target player

Desired solution:

Add these commands to Mars

Affected areas / files:

• Broadcast commands