added test_block_formatter; restructured workflows; added workflow badges

.github/workflows/tests.yml

@@ -0,0 +1,27 @@
+name: Tests
+
+on:
+  push:
+    branches:
+      - 'main'
+  pull_request:
+    branches:
+      - 'main'
+  workflow_dispatch:
+
+jobs:
+  unittest:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.12"]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install Dependencies
+        run: pip install ".[test]"
+      - name: Test on Python ${{ matrix.python-version }}
+        run: python -m unittest discover tests --verbose