Plugin profiling feature

[tuxillator]

Would be good to have some form of plugin profiling available to server admins when they have a misbehaving plugin on their server. This would be functionally similar to Spigot's /timing command.

Could be implemented either:

• as a server configuration option
• as a command, that toggles profiling mode on and off

When enabled, I would like to see:

• time spent in plugin per tick averaged over second
• by plugin, time spent in each method call (perhaps Thread.getStackTrace() ).

Results should go to some log file (profile.log) due to volume of information and ability to send in to plugin devs for diagnosis.