Add autoblack github action (#283)

* Add autoblack github action

* autoblack: Uuuuh PR creation isnt triggered if black returns an error code ?

* autoblack: Only run autoblack when pushing on dev

.github/workflows/autoblack.yml

@@ -0,0 +1,28 @@
+name: Check / auto apply Black
+on:
+  push:
+      branches:
+          - dev
+jobs:
+  black:
+    name: Check / auto apply black
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Check files using the black formatter
+        uses: rickstaa/action-black@v1
+        id: action_black
+        with:
+          black_args: "."
+        continue-on-error: true
+      - name: Create Pull Request
+        if: steps.action_black.outputs.is_formatted == 'true'
+        uses: peter-evans/create-pull-request@v3
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          title: "Format Python code with Black"
+          commit-message: ":art: Format Python code with Black"
+          body: |
+            This pull request uses the [psf/black](https://github.com/psf/black) formatter.
+          base: ${{ github.head_ref }} # Creates pull request onto pull request or commit branch
+          branch: actions/black