Adds crlf default to .gitattributes for most text file types we use.

Massive green/red is to the best of my knowledge caused by files being nearly entirely LF.

Signed-off-by: Mloc-Argent <colmohici@gmail.com>
Merge pull request #2544 from Mloc/tg-crlf

Adds crlf default to .gitattributes for most text file types we use.