Merge pull request #373 from onekk/master

Modified Package: lyx modified INSTALL file as there are some
xbps-git: bump version (0.37 with a bugfix).
New Package: Ilmbase - the core library of OpenEXR

This is the core library of OpenEXR
A high dynamic-range (HDR) image file format developed by
Industrial Light & Magic for use in computer imaging applications.

Hope it is packaged the right way

Regards
Carlo