Merge of small MRs that make changes to the Python bindings

Merges

• !931 (closed) feature/store-commit-hash-in-pypi-package
• !929 (closed) bugfix/packagemetadata
• !909 (closed) feature/generator-speed-up
• !908 (closed) feature/verbose-jit
• !923 (closed) bugfix/missing-dependecies-for-pip-install-dune-common
• !920 (closed) issue/find_installed_modules
• !928 (closed) bugfix/dunepy_fix_path_to_installed_module
• !921 (closed) bugfix/use-additional-pip-params-in-wheel-building
• !931 (closed) feature/store-commit-hash-in-pypi-package

The whole MR needs some squashing before commit

python/dune/packagemetadata.py

@@ -305,7 +305,7 @@ def get_dune_py_dir():
 
     # generate in home directory
     try:
-        home = expanduser("~")
+        home = os.path.expanduser("~")
         return os.path.join(home, '.cache', 'dune-py')
     except KeyError:
         pass