COMP: Use qRestAPI instead of deprecated qMidasAPI project

In addition to provide Midas support, qRestAPI also provides
support for XNat (qXnatAPI.h)

See https://github.com/commontk/qRestAPI

git-svn-id: http://svn.slicer.org/Slicer4/trunk@22029 3bd1e089-480b-0410-8dfb-8563597acbee