Refactoring out Core Module code

Most refactoring complete.  Need to fix up the tests and benchmark code.
#1 #2 #7
Move over benchmark code; fix biomeProvider instantiation

benmarks not functional yet
Water is pretty again
Add API safeness to externally registered chunk/world generators
Move blocks to core

A couple things remain: core:grass rendering, water and lava and ice
still in engine
Fix incorrect URI to water and lava
Move water, lava, and ice to Core

This leaves just air in the engine
Extract the initial player inventory to Core

close #4
Merge remote-tracking branch 'upstream/develop' into develop

Conflicts:
	engine/src/main/java/org/terasology/world/chunks/Chunk.java
Move over explode sounds to Core; Add in partial support for biome debug information; Fix some URIs incorrectly pointing to core:
Add less hardcoded rendering for ice and grass

Opting to follow Immortius's temporary hardcode for ice and grass.  The
"right" way is too big for a refactoring pass.
close #10
Allow remote games to function without any world generation data

#12
Clean up unfinished idea in comment
Optimize Imports in Core module
Standardize chunk related class names; Clean up Chunk API;
Move benchmarks to where they belong
Fix spacing in biome debug message
Implicit module resolution on block definitions
Fix casing issue
Organize imports; format code;

Found the offending settings in IntelliJ that was .*-ing imports