Add hdf5-vol-external-passthrough package. (#27289)

* Add hdf5-vol-external-passthrough package.

* Add version v1.0 for vol-external-passthrough release.

* Remove incorrect comment.

* Add source url and checksum.  Update HDF5 minimum version.

var/spack/repos/builtin/packages/hdf5-vol-external-passthrough/package.py

@@ -0,0 +1,26 @@
+# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class Hdf5VolExternalPassthrough(CMakePackage):
+    """Package for HDF5 external pass-through VOL."""
+
+    homepage = "https://sdm.lbl.gov/"
+    url      = "https://github.com/hpc-io/vol-external-passthrough/archive/refs/tags/v1.0.tar.gz"
+    git      = "https://github.com/hpc-io/vol-external-passthrough.git"
+    maintainers = ['hyoklee']
+
+    version('develop', branch='develop')
+    version('1.0', sha256='99a06d1c31451f8f0c8c10fec112410cda1f951f0eda1bd0ca999d6b35cf7740')
+    depends_on('hdf5@1.13.0:')
+
+    def cmake_args(self):
+        args = [
+            self.define('BUILD_SHARED_LIBS:BOOL', True),
+            self.define('BUILD_TESTING:BOOL=ON', self.run_tests)
+        ]
+        return args