KryBoxChatRoles

# KryBox Chat Roles

Adds role tags to Arma Reforger chat.

Examples:

[ADMIN] Server restart in 10 minutes.
[GAMEMASTER] Please return to the RP area.

## Admin detection

The script uses:

SCR_Global.IsAdmin(senderId)

This checks the sender's actual admin status rather than trusting a configurable
player name.

## Game Master detection

Reforger's editor/Game Master manager is local to each player. The script therefore
checks the local sender when the sender is the local player:

- editor is opened
- editor is not limited

This avoids falsely claiming that every player with access to some editor functionality
is an active Game Master.