Critical fix for tiers, some minor changes

Moved PowerHandler initialization to validate() to avoid using tier 0 as
default.
Fixed crafting recipes with energy and lapotron crystals.
Changed some recipes.
Finished GregTech support.
Created ItemCustomPipe for customization purposes.
Moved items and blocks translations outside code - use .lang files
instead.
Implemented dynamic energy amout emission for engines (for future use).
Initial GUI and Containers implementation.
Partially finished BC trigger (will not work until heat is being
calculated properly).
Decreased network updates frequency.
Code and formatting cleanup.