[v3.2.0] Adding support for "plugins"

[Power2All]

Working out the first iteration of a plugin system. A new 'plugin' folder will be available, where you could put in your own 3rd party code for the tracker. More documentation will be written how this could be used for your preferences, and would be helpful for trackers used with private sites and such.

[Power2All]

Canceled the idea, too much work and figuring out, so I add functions through a folder objects. Closing the thing, and perhaps later add a LUA hook.