renamed and reworked cconstants with jan david and move some constants back to files

...ncontrol/tangostationcontrol/clients/statistics/client.py

...tationcontrol/tangostationcontrol/clients/udp_receiver.py

tangostationcontrol/tangostationcontrol/common/constants.py

...tationcontrol/tangostationcontrol/devices/antennafield.py

...stationcontrol/tangostationcontrol/devices/beam_device.py

tangostationcontrol/tangostationcontrol/devices/boot.py

...stationcontrol/tangostationcontrol/devices/observation.py

tangostationcontrol/tangostationcontrol/devices/psoc.py

tangostationcontrol/tangostationcontrol/devices/recv.py

...stationcontrol/tangostationcontrol/devices/sdp/beamlet.py

...ioncontrol/tangostationcontrol/devices/sdp/digitalbeam.py

tangostationcontrol/tangostationcontrol/devices/sdp/sdp.py

...tioncontrol/tangostationcontrol/devices/sdp/statistics.py

tangostationcontrol/tangostationcontrol/devices/tilebeam.py