Clans v1.0 for TShock v4.3.25

Changelog:

• Compiled against TShock v4.3.25
• The configuration file and the database have been moved to TShock directory/clans
• Added a config option to limit the amount of clans players can create
• Added clan permissions (clan permissions affect all members, thus giving the kick permission will give access to the /kick command to everyone within the clan. Does not support negated permissions). Can be turned off in the config.
• Friendly fire can now be toggled within the config.