Tensura Compat: Open Parties and Claims

• Better opac-perm commands.

• Added bonus claim system usable with commands /opac-perm.

• The mod now requires Opac to be installed to run, instead of only crashing when playing.

Features:

• Tensura skills/magics/battelwills won't break/place/change blocks inside claimed chunk.
• Tensura skills/magics/battelwills won't damage players and entities when either the attacker or the target is inside a claimed chunk.