py-gsd: new package at v1.9.3 (#17200)

Co-authored-by: Andrew Elble <aweits@rit.edu>

var/spack/repos/builtin/packages/py-gsd/package.py

+# Copyright 2013-2020 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 PyGsd(PythonPackage):
+    """The GSD file format is the native file format for HOOMD-blue. GSD files
+    store trajectories of the HOOMD-blue system state in a binary file with
+    efficient random access to frames. GSD allows all particle and topology
+    properties to vary from one frame to the next. Use the GSD Python API to
+    specify the initial condition for a HOOMD-blue simulation or analyze
+    trajectory output with a script. Read a GSD trajectory with a visualization
+    tool to explore the behavior of the simulation."""
+
+    homepage = "https://gsd.readthedocs.io/en/stable/#"
+    url      = "https://pypi.io/packages/source/g/gsd/gsd-1.9.3.tar.gz"
+
+    version('1.9.3', sha256='c6b37344e69020f69fda2b8d97f894cb41fd720840abeda682edd680d1cff838')
+
+    depends_on('py-setuptools', type='build')
+    depends_on('py-cython', type='build')
+    depends_on('py-numpy@1.9.3:1.999999', type=('build', 'run'))