Test case for prospective low-memory exascale API.

Test passes now, but will later require the API to simulate shoebox
pixels with ~10-fold lower memory consumption and thus fail until the
fix is in.

Author: nksauter

simtbx/run_tests.py

@@ -94,6 +94,7 @@
      ["$D/gpu/tst_exafel_api.py","context=kokkos_gpu"],# GPU in kokkos
      ["$D/tests/tst_unified.py","context=kokkos_gpu"],# GPU, exaFEL full API
      ["$D/gpu/tst_shoeboxes.py","context=kokkos_gpu"],# GPU, test whitelist API
+     ["$D/tests/tst_memory_policy.py","context=kokkos_gpu"],
    ]
 if OPT.enable_kokkos:
   if OPT.enable_cxx11 and sys.platform != 'win32':