Add methods to print block data from sections in a region.
Now mcreplacer will output block data instead of the Tag dump.

I'm not quite sure that the IDs display are valid block ids, but it looks as if the output matches
the IDs from http://minecraft-ids.grahamedgecombe.com/ - first comes bedrock, then stone,
then some ores... Unfortunately I got an ID=-127 which is definitely wrong. :-(
Push to v0.0.2.
Push to v0.0.3-SNAPSHOT.