Suggestion: Bypass permission nodes for spawning.

[partydev]

Please explain your feature request to the best of your abilities:

Currently the only way to give a person the ability to bypass town spawn related stuff is via this permission node:

towny.admin.spawn: User is able to bypass the costs, warmups and cooldowns for spawning.

I would like this node to be split up into towny.admin.spawn.cost, etc. This impacts my server because we let certain people bypass town spawn warmups.