Essentials

Updated to, and tested on, MC1.16.5.

+Added the Signum Circuit, which does the signum function (1 for positive input, -1 for negative input, 0 for 0 input)
*Fixed wireless transmitters not transmitting negative signals properly
*Interface circuits are now properly considered a 'basic circuit' (doesn't consume quartz to place)
*Fixed splitters not allowing setting a 100% split ratio (all input goes out the second output)

*Fixed fluids with an assigned ID of 0 not being rendered in UI fluid contents bars
*Empty fluid contents bars in UIs will show the capacity in the tooltip, instead of only displaying 'Empty'
*Localized the mb contents tooltip for fluids, incase some language doesn't understand slashes

*Localized the guidebook name and entry texts