message: Use find_package for adiak and gotcha dependencies in CMake build system
  Per PR suggestion from Veselin.
diff: @@ -23,21 +23,15 @@ mfem_find_package(Caliper CALIPER CALIPER_DIR
  # Append adiak path/lib if the user provided ADIAK_DIR
  if(ADIAK_DIR AND EXISTS ${ADIAK_DIR})
  - list(APPEND CALIPER_INCLUDE_DIRS ${ADIAK_DIR}/include)
  -
  - unset(_lib)
  - find_library(_lib "adiak" NO_CACHE PATHS ${ADIAK_DIR}/lib)
  - list(APPEND CALIPER_LIBRARIES ${_lib})
  + find_package(adiak NO_DEFAULT_PATH REQUIRED PATHS ${ADIAK_DIR}/lib/cmake/adiak ${ADIAK_DIR})
  + list(APPEND CALIPER_INCLUDE_DIRS ${adiak_INCLUDE_DIRS})
  + list(APPEND CALIPER_LIBRARIES ${adiak_LIBRARIES})
  endif()
  # Append gotcha path/lib if the user provided GOTCHA_DIR
  if(GOTCHA_DIR AND EXISTS ${GOTCHA_DIR})
  - list(APPEND CALIPER_INCLUDE_DIRS ${GOTCHA_DIR}/include)
  -
  - unset(_lib)
  - find_library(_lib "gotcha" NO_CACHE PATHS ${GOTCHA_DIR}/lib)
  - list(APPEND CALIPER_LIBRARIES ${_lib})
  + find_package(gotcha NO_DEFAULT_PATH REQUIRED PATHS ${GOTCHA_DIR}/lib/cmake/gotcha ${GOTCHA_DIR})
  + list(APPEND CALIPER_INCLUDE_DIRS ${gotcha_INCLUDE_DIRS})
  + list(APPEND CALIPER_LIBRARIES ${gotcha_LIBRARIES})
  endif()
  -unset(_lib)
  -
  