Added hyperband support for hyperparameter tuning

.gitlab-ci.yml

@@ -7,8 +7,9 @@ test:
   script:
     - pip install pipenv
     - pip install coverage
-    - pipenv install --dev Pipfile
+    - pipenv install Pipfile --dev
     - pip install -e deepof/
+    - pipenv shell
     - coverage run --source deepof -m pytest
     - coverage report -m --include deepof/utils.py,deepof/preprocess.py,deepof/model_utils.py,deepof/pose_utils.py,deepof/visuals.py,deepof/models.py,deepof/hypermodels.py,deepof/train_utils.py
     - coverage xml -o deepof_cov.xml