Plugin Manager UI

A UI addition for the Superuser panel. It will allow enabling and modifying configuration for plugins in a different fashion than previously offered, which was via a separate script being run and the use of socket.io for the connection. Now plugins can be connected as a child process instead. Which means they are able to offer lower CPU overhead when transferring frames to them.

The only drawback (currently realized) of this method is that the plugin can only be run on the same machine as the Shinobi installation.

You can enable plugins this as well as the prior method with socket.io. You can enable cluster methods with them both (together).