Suggestion: Allow FlagWar in homeblock only

[Parthodys]

It would be great if FlagWar had an option to only allow attacks on homeblock.

FlagWar has option to set payouts per chunk type, such as normal claims vs homeblock claims, but it still allows attacking either even if payout is 0$.
Our server uses homeblock option only, but players can still place the FlagWar block on other chunks, which just creates confusion and if griefing is on, it allows them to grief whatever chunk they attack.