New Version of the Driver

[PaulMullowney]

This is a version of the driver I wrote which I've been using for validation. Ultimately, we may not want to keep this but it may be useful for a while as we attempt to make the OpenMP version portable.

[reuterbal]

No objections to keeping this around for a while. Am I understanding correctly that this is a kind of halfway-house between the ecrad_ifs and ecrad_ifs_blocked drivers, with blocked allocations but avoiding the slices out of a single allocation?

Ideally, we should add this driver to the Ctest definitions so tests are being run for it, too. Could you add it to the list of drivers in these two places?

1. For running the binary:
   

   ecrad/test/ifs/CMakeLists.txt

   Line 114 in 9115c0f

   foreach( binary ecrad_${PREC} ecrad_ifs_${PREC} ecrad_ifs_blocked_${PREC} )

2. For validating the results
   

   ecrad/test/ifs/CMakeLists.txt

   Line 145 in 9115c0f

   foreach( binary ecrad_ifs_${PREC} ecrad_ifs_blocked_${PREC} )