GeoActivity

Changes:
- updated to recommended Forge 11.14.3.1450
- added Geothermal Generator;needs to be placed in lava pools;generates 4 RF/t per lava block;works better at lower altitudes;scans for lava blocks recursively up to a distance of 25 meters from the generator;
outputs power to bottom/top only and searches for lava blocks starting from its sides only;has a 40% to turn lava into obsidian in a 3x3x3 cube centered on it, so it will eventually stop working;
- added Thermic Melter;transforms obsidian into lava in a 5x5x5 cube centered on it;uses 10 RF/t passively and 50k RF per obsidian block;
Fixes:
- implemented proper interfaces for machines that use RF
- fixed Advanced Redstone BattleMiner GUI and added detailed power information to the power bar