jedi: add new pybricks_jedi package

This package will be used in Pybricks Code to provide some intellesense
operations.

.github/workflows/jedi.yml

@@ -0,0 +1,33 @@
+name: pybricks_jedi
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    if: github.ref_type != 'tag'
+    runs-on: ubuntu-22.04
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-python@v2
+      with:
+        python-version: "3.10"
+    - run: pipx install poetry
+    - run: poetry install
+      working-directory: ./jedi
+    - run: poetry run pytest -vv
+      working-directory: ./jedi
+
+  publish:
+    if: github.ref_type == 'tag' && startsWith(github.ref_name, 'pybricks_jedi/')
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-python@v2
+      with:
+        python-version: "3.10"
+    - run: pipx install poetry
+    - run: poetry install
+    - run: poetry build
+    - run: poetry publish
+      env:
+        POETRY_PYPI_TOKEN_PYPI: ${{ secrets.PYPI_PYBRICKS_JEDI_TOKEN }}