message: Adds c2c to rzgenie-klee host-config
diff: #------------------------------------------------------------------------------
  # Note:
  # Contains a parallel build of MFEM generated using:
  -# >./scripts/llnl_scripts/build_tpls.py --spec "%clang@10.0.0+devtools+mfem ^mfem+mpi+metis+zlib"
  +# >./scripts/llnl_scripts/build_tpls.py --spec "%clang@10.0.0+devtools+mfem+c2c ^mfem+mpi+metis+zlib"
  # and adds a flag to use the axom version of mfem sidre data collection (see bottom of file)
  #------------------------------------------------------------------------------
  if(DEFINED ENV{SPACK_CC})
  - set(CMAKE_C_COMPILER "/usr/WS1/axom/libs/toss_3_x86_64_ib/2021_07_16_12_05_49/spack/lib/spack/env/clang/clang" CACHE PATH "")
  + set(CMAKE_C_COMPILER "/usr/WS1/axom/libs/toss_3_x86_64_ib/2021_07_16_12_28_08/spack/lib/spack/env/clang/clang" CACHE PATH "")
  - set(CMAKE_CXX_COMPILER "/usr/WS1/axom/libs/toss_3_x86_64_ib/2021_07_16_12_05_49/spack/lib/spack/env/clang/clang++" CACHE PATH "")
  + set(CMAKE_CXX_COMPILER "/usr/WS1/axom/libs/toss_3_x86_64_ib/2021_07_16_12_28_08/spack/lib/spack/env/clang/clang++" CACHE PATH "")
  - set(CMAKE_Fortran_COMPILER "/usr/WS1/axom/libs/toss_3_x86_64_ib/2021_07_16_12_05_49/spack/lib/spack/env/clang/gfortran" CACHE PATH "")
  + set(CMAKE_Fortran_COMPILER "/usr/WS1/axom/libs/toss_3_x86_64_ib/2021_07_16_12_28_08/spack/lib/spack/env/clang/gfortran" CACHE PATH "")
  else()
  @@ -77,11 +77,11 @@ set(ENABLE_GTEST_DEATH_TESTS ON CACHE BOOL "")
  # Root directory for generated TPLs
  -set(TPL_ROOT "/usr/WS1/axom/libs/toss_3_x86_64_ib/2021_07_16_12_05_49/clang-10.0.0" CACHE PATH "")
  +set(TPL_ROOT "/usr/WS1/axom/libs/toss_3_x86_64_ib/2021_07_16_12_28_08/clang-10.0.0" CACHE PATH "")
  set(CONDUIT_DIR "${TPL_ROOT}/conduit-0.7.2" CACHE PATH "")
  -# C2C not built
  +set(C2C_DIR "${TPL_ROOT}/c2c-1.3.0" CACHE PATH "")
  set(MFEM_DIR "${TPL_ROOT}/mfem-4.2.0" CACHE PATH "")
  