feat: add circleci configuration

.circleci/config.yml

@@ -0,0 +1,25 @@
+version: 2
+jobs:
+  test:
+    docker:
+      - image: circleci/python:3.6.1
+    working_directory: ~/spleeter
+    steps:
+      - checkout
+      - run:
+          name: install spleeter
+          command: pip install .      
+      - run:
+          name: test separation
+          command: spleeter separate -i audio_example.mp3 -o .
+  upload:
+    docker:
+      - image: circleci/python:3.6.1
+    steps:
+      - checkout
+      - run:
+          name: package
+          command: python setup.py bdist
+      - run:
+          name: upload to PyPi
+          command: pip install twine && twine upload dist/*