add mpi4py to iompi/2020 toolchain

Golden_Repo/m/mpi4py/mpi4py-3.0.3-iompi-2020-Python-3.8.5.eb

+easyblock = 'PythonPackage'
+
+name = 'mpi4py'
+version = '3.0.3'
+
+homepage = 'https://bitbucket.org/mpi4py/mpi4py'
+description = """MPI for Python (mpi4py) provides bindings of the Message Passing Interface (MPI) standard for
+ the Python programming language, allowing any Python program to exploit multiple processors.
+"""
+
+site_contacts = 'a.kreuzer@fz-juelich.de'
+
+toolchain = {'name': 'iompi', 'version': '2020'}
+
+source_urls = [BITBUCKET_DOWNLOADS]
+sources = [SOURCE_TAR_GZ]
+
+versionsuffix = '-Python-%(pyver)s'
+
+dependencies = [('Python', '3.8.5')]
+
+sanity_check_paths = {
+    'files': [],
+    'dirs': ['lib/python%(pyshortver)s/site-packages/mpi4py'],
+}
+
+moduleclass = 'mpi'