Exponentialistics Pipes

Added the "Retriever pipe" based on a suggestion by Paril

Like a supplier, but requests anything with priority 0 by default

Fixed two major bugs, involving really bad routing, console spamming and server freezing

Added a debug option in the config

Added the Sequencer Pipe, that will reroute the items to a sequence of other pipes.

Can be configured with the locator: right-click on pipe to save the location, shift-right-click to clear the list.

Then right-click on sequencer.

Allows pure round-robin configurations, can be used as default sink... Very powerful.

Also fixed some bugs here and there: pipe disconnections will sync between server and client now !