Add server-side hook to ensure line ending consistency

[cpinter]

A server-side hook could make sure all the committed files have the same line ending style.

Migrated from https://app.assembla.com/spaces/slicerrt/tickets/631-add-server-side-hook-to-ensure-line-ending-consistency/details

[cpinter]

Andras Lasso:
There are a couple of predefined hooks that you can choose from (see https://www.assembla.com/code/slicerrt/subversion/vcs_hooks/all). Unfortunately, end-of-line checking is not available. You can submit your own hook and after it is reviewed it can be installed.