Add FlexMeasures plugins, USEF protocol, and Cariflex simulator

- flexmeasures-entsoe: ENTSO-E data plugin
- flexmeasures-weather: Weather data plugin
- USEF Flex Trading Protocol PDF (2.4MB)
- Cariflex simulator (publishes to Redis)
- Dashboard Grafana updated with correct InfluxDB queries
- All tools extracted in /tools/

tools/flexmeasures-entsoe/.github/workflows/ci.yml

@@ -0,0 +1,42 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: "Python ${{ matrix.python-version }} / FlexMeasures ${{ matrix.flexmeasures.version }}"
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11", "3.12"]
+        flexmeasures:
+          - version: "0.31.*"
+            requirement: "flexmeasures==0.31.*"
+          - version: "0.32.*"
+            requirement: "flexmeasures==0.32.*"
+          - version: "latest"
+            requirement: "flexmeasures"
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install FlexMeasures compatibility target
+        run: |
+          python -m pip install --upgrade pip setuptools wheel
+          python -m pip install "${{ matrix.flexmeasures.requirement }}"
+
+      - name: Run tests
+        run: make test