Removing BGEO and BIN readers/writers.

These haven't been used since they were first written, and haven't been updated to the latest specs for their respective formats.
Removing IFFHairReader.

Maya classic hair is quite old, and modern workflows should be using nHair instead.
Enabling OBJReader tests.

No idea why these were disabled in the first place...
Marking TypeIds for reuse, removed bindings
Merge pull request #290 from andrewkaufman/deadFormats

Removing old geometry formats