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

bin/setup-dunepy.py

@@ -101,6 +101,8 @@ def main(argv):
 
     dunepy = get_dune_py_dir()
     dunepyBase = os.path.realpath( os.path.join(dunepy,"..") )
+    if not os.path.exists(dunepyBase):
+        os.makedirs(dunepyBase)
     with Lock(os.path.join(dunepyBase, 'lock-module.lock'), flags=LOCK_EX):
         if os.path.exists(dunepy):
             shutil.rmtree(dunepy)