Merge branch 'schneider/ess' into 'master'

Documentation/bluetooth/ess.rst

Documentation/index.rst

epicardium/ble/ble.c

epicardium/ble/ble_api.h

epicardium/ble/ble_main.c

epicardium/ble/cccd.h

epicardium/ble/ess.c

epicardium/ble/ess.h

epicardium/ble/meson.build

epicardium/modules/bme680.c

epicardium/modules/hardware.c

epicardium/modules/modules.h

epicardium/modules/mutex.c

lib/sdk/Libraries/BTLE/stack/ble-host/include/att_uuid.h

...ibraries/BTLE/stack/ble-host/sources/stack/att/att_uuid.c