Add support for parallel tools based on the 3rd party library mpiFileUtils (libMFU) … (#1177)

Adds tool h5dwalk and configure options to enable building it.

Co-authored-by: Richard Warren <Richard.Warren@hdfgroup.org>
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Richard.Warren <richard.warren@jelly.ad.hdfgroup.org>
Co-authored-by: Larry Knox <lrknox@hdfgroup.org>

config/cmake/FindDTCMP.cmake

@@ -0,0 +1,48 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+#[=======================================================================[.rst:
+FindDTCMP
+--------
+
+Find the native DTCMP includes and library
+
+This module defines
+
+::
+
+  DTCMP_INCLUDE_DIR, where to find DTCMP.h, etc.
+  DTCMP_LIBRARIES, the libraries required to use DTCMP.
+  DTCMP_FOUND, If false, do not try to use DTCMP.
+
+also defined, but not for general use are
+
+::
+
+  DTCMP_LIBRARY, where to find the DTCMP library.
+#]=======================================================================]
+
+if(DEFINED ENV{MFU_ROOT})
+  set(ENV{MFU_INCLUDE} "$ENV{MFU_ROOT}/include")
+  set(ENV{MFU_LIB} "$ENV{MFU_ROOT}/lib")
+  set(ENV{MFU_LIB64} "$ENV{MFU_ROOT}/lib64")
+else()
+  message("DTCMP_LIBRARY: If you have problems building this library,\nconsider setting the MFU_ROOT environment variable to indicate\nwhere to find the support libraries and header files!")
+endif()
+
+find_path(DTCMP_INCLUDE_DIR
+  NAMES dtcmp.h
+  HINTS ENV MFU_INCLUDE)
+
+find_library(DTCMP_LIBRARY
+  NAMES dtcmp
+  HINTS ENV MFU_LIB ENV MFU_LIB64)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(DTCMP REQUIRED_VARS DTCMP_LIBRARY DTCMP_INCLUDE_DIR)
+
+if(DTCMP_FOUND)
+  set(DTCMP_LIBRARIES ${DTCMP_LIBRARY} )
+endif()
+
+mark_as_advanced(DTCMP_INCLUDE_DIR DTCMP_LIBRARY)