Adds Tier 2 Obsidian Furnace

- Added T2 Obsidian Furnace and problem log
T2 Obsidian Furnace fix

- Fixed all outstanding problems with the Tier 2 furnace.
- Edited changelogs.
- Need to build and test in 1.7.2 and 1.7.10 environments to ensure as
many possible bugs are removed before tiering the other furnaces.
Added Tier 3 Obsidian Furnace

- Added a T3 obsidian furnace to be utilised as a template(I think I'll
stop now).
- Changed some texture directions
Merge remote-tracking branch 'origin/Tiered-Furnaces'

Conflicts:
	src/main/java/io/github/mattkx4/morefurnaces/main/developer
changelog.txt
Commit screwed up attempt at fix 2

replacing the dev changelog as it seems to be causing the trouble