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-weather/Makefile

@@ -0,0 +1,45 @@
+# Note: use tabs
+# actions which are virtual, i.e. not a script
+.PHONY: install install-for-dev install-deps install-flexmeasures-weather test freeze-deps upgrade-deps
+
+
+# ---- Development ---
+
+test:
+	make install-for-dev
+	pytest
+
+# ---- Installation ---
+
+install: install-deps install-flexmeasures-weather
+
+install-for-dev:
+	make freeze-deps
+	pip-sync requirements/app.txt requirements/dev.txt requirements/test.txt
+	make install-flexmeasures-weather
+	pre-commit install
+
+install-deps:
+	make install-pip-tools
+	make freeze-deps
+	pip-sync requirements/app.txt
+
+install-flexmeasures-weather:
+	pip install -e .
+
+install-pip-tools:
+	pip3 install -q "pip-tools>=6.2"
+
+freeze-deps:
+	make install-pip-tools
+	pip-compile -o requirements/app.txt requirements/app.in
+	pip-compile -o requirements/test.txt requirements/test.in
+	pip-compile -o requirements/dev.txt requirements/dev.in
+
+upgrade-deps:
+	make install-pip-tools
+	pip-compile --upgrade -o requirements/app.txt requirements/app.in
+	pip-compile --upgrade -o requirements/test.txt requirements/test.in
+	pip-compile --upgrade -o requirements/dev.txt requirements/dev.in
+	make test
+