Add woodpecker ci pipeline

Added basic continuous integration tests to run on any push.

On main branch, the python program is built.

.woodpecker.yml

@@ -0,0 +1,48 @@
+# branches: main
+
+pipeline:
+  unit_tests:
+    image: mquade/poetry:3.9-1.1.11
+    commands:
+      - poetry config virtualenvs.create false
+      - poetry install
+      - pytest
+
+  code_lint:
+    image: mquade/poetry:3.9-1.1.11
+    commands:
+      - poetry config virtualenvs.create false
+      - poetry install
+      - pip install black
+      - black .
+
+  static_analysis:
+    image: mquade/poetry:3.9-1.1.11
+    commands:
+      - poetry config virtualenvs.create false
+      - poetry install
+      - pip install mypy
+      - mypy .
+
+  build_dist:
+    image: mquade/poetry:3.9-1.1.11
+    commands:
+      - poetry config virtualenvs.create false
+      - poetry install
+      - poetry build
+    when:
+      branch: main
+
+  notify_matrix:
+    image: plugins/matrix
+    settings:
+      homeserver: https://matrix.org
+      roomid:
+        from_secret: matrix_roomid
+      userid:
+        from_secret: matrix_userid
+      accesstoken:
+        from_secret: matrix_token
+    when:
+      status: [ success, failure ]
+