chore: normalize line endings
chore: normalize line endings

Add .gitattributes to force *nix style line endings in all environments.  This prevents eslint from failing on Windows.

jdetle/nteract,nteract/nteract,jdfreder/nteract,temogen/nteract,0u812/nteract,rgbkrk/nteract,jdfreder/nteract,jdetle/nteract,temogen/nteract,rgbkrk/nteract,0u812/nteract,captainsafia/nteract,captainsafia/nteract,0u812/nteract,jdfreder/nteract,rgbkrk/nteract,captainsafia/nteract,rgbkrk/nteract,captainsafia/nteract,nteract/composition,nteract/nteract,0u812/nteract,nteract/composition,nteract/nteract,temogen/nteract,nteract/composition,rgbkrk/nteract,nteract/nteract,jdfreder/nteract,jdetle/nteract,nteract/nteract,jdetle/nteract