message: Add config header for lua/inlet
diff: #cmakedefine AXOM_USE_CUDA
  #cmakedefine AXOM_USE_FMT
  #cmakedefine AXOM_USE_HDF5
  +#cmakedefine AXOM_USE_LUA
  #cmakedefine AXOM_USE_MFEM
  #cmakedefine AXOM_USE_MPI
  #cmakedefine AXOM_USE_MPIF_HEADER
  /*
  - * Compiler defines for the toolkit components
  + * Compiler defines for Axom components
  */
  +#cmakedefine AXOM_USE_INLET
  #cmakedefine AXOM_USE_MINT
  #cmakedefine AXOM_USE_LUMBERJACK
  #cmakedefine AXOM_USE_PRIMAL
  