added openbci pic
cleanup
Merge branch 'develop' of https://github.com/marionleborgne/cloudbrain

Conflicts:
	src/horizon/CW/metrics.json
	src/horizon/CW/templates.py
	src/pipeline/CW/templates.py
	src/settings.py
	utils/CW/metrics.json
	utils/CW/templates.py
	utils/cw/cw_udp_server.py
	utils/cw/metrics.json