Add a failing test for CRLF filters

This PR contains a test which fails due to CRLF filters being applied to files which they probably should not be. I have not tried to root cause this yet but I figured I would send it along.

The repo contains:
1. A UTF-16 text file with BOM that contains 2 character (4 byte) CRLF line endings. For this encoding, git.git appears to not turn these into 1 character (2 byte) LF line endings, so it is stored in the repository with its full CRLF endings.
2. Just a simple JPEG file.