L2SS-1896: Make our DeviceProxies read-only by default.

README.md

...files/stationcontrol-jupyter/startup/01-stationcontrol.py

...hon-profiles/stationcontrol-jupyter/startup/02-devices.py

...files/stationcontrol-jupyter/startup/03-access-control.py

...python-profiles/stationcontrol-jupyter/startup/99-help.py

tangostationcontrol/VERSION

tangostationcontrol/docs/source/interfaces/control.rst

...ioncontrol/tangostationcontrol/beam/managers/_tilebeam.py

tangostationcontrol/tangostationcontrol/common/proxy.py

...ontrol/devices/base_device_classes/antennafield_device.py

...oncontrol/devices/base_device_classes/hierarchy_device.py

...stationcontrol/tangostationcontrol/devices/calibration.py

...ncontrol/tangostationcontrol/devices/observation_field.py

...trol/tangostationcontrol/observation/observation_field.py

...test/devices/base_device_classes/test_hierarchy_device.py