Added .git attributes file to stop Git changeing line endings in test files between Windows/Linux.
Added .git attributes file to stop Git changeing line endings in test files between Windows/Linux.

adamretter/droid,digital-preservation/droid,snail1966/droid,snail1966/droid,digital-preservation/droid,snail1966/droid,adamretter/droid,adamretter/droid,digital-preservation/droid,digital-preservation/droid,snail1966/droid,snail1966/droid,digital-preservation/droid