Update bluebrain packages

Add py-bluepyefe and py-bluepymm and get latest versions of any Spack packages (either EBRAINS components or dependencies) from https://github.com/BlueBrain/spack

packages/py-bluepyefe/package.py

+# (from https://github.com/BlueBrain/spack)
+
+# 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.package import *
+
+
+class PyBluepyefe(PythonPackage):
+    """Blue Brain Python E-feature extraction"""
+
+    homepage = "https://github.com/BlueBrain/BluePyEfe"
+    pypi = "bluepyefe/bluepyefe-0.3.13.tar.gz"
+    git = "https://github.com/BlueBrain/BluePyEfe.git"
+
+    version("2.2.18", sha256="bfb50c6482433ec2ffb4b65b072d2778bd89ae50d92dd6830969222aabb30275")
+
+    depends_on("py-setuptools", type="build")
+
+    depends_on("py-numpy", type=("build", "run"))
+    depends_on("py-neo", type=("build", "run"))
+    depends_on("py-matplotlib", type=("build", "run"))
+    depends_on("py-efel", type=("build", "run"))
+    depends_on("py-scipy", type=("build", "run"))
+    depends_on("py-h5py", type=("build", "run"))
+    depends_on("py-igor", type=("build", "run"))
+
+    def setup_run_environment(self, env):
+        env.set("NEURON_INIT_MPI", "0")
+        env.unset("PMI_RANK")