Added the old savefilespec file
Functioning version of player's facial data extraction
Updated gitignore with testdirs
Made it python2/3 compatible
Added support for modded assets

Also changed the name formid to refid to emphasize the difference between
3-byte refids and 4-byte formids.
Added common.py
Minor changes and fixes
First version of the extract module
Added testdata
Changed to bitwise ops instead of **
Added race to extracted data
Added more testdata