Vanish

### New commands

Vanish command now has bulk vanish capabilities.

- "/vanish all" / "/vanish all true" vanishes all players

- "/vanish all false" unvanishes all players

- "/vanish <target>" toggle vanish on target

- "/vanish <target> <true/false>" set vanish on target

- "/vanish reload" reload settings file

### New Settings

- "persistent" vanish status is persistent over restarts (default: enabled)

- "logVanishToConsole" vanishing get's logged to server console (default: disabled)

- "logUnvanishToConsole" **un**vanishing get's logged to server console (default: disabled)

### other features

- settings file now adds all new options on server start