Improvement of the GregTech Power System

Added the ability to shift-rightclick a GregTech Producer to Increase the Amperage (energy-output)

The Output can be raised up to 8 Ampere

Additionally changed (fixed :) ) the GUI Display of GregTech Producers and Consumers, 
they're no longer shown as xxx EU/t - now the Amperage  will be shown.



__New Todos__
- 1 new localized String has been added, i only added the English version of it.