Add plain Crossecho device for Tango

crossechoTangoDev/Crossecho.xmi

crossechoTangoDev/Crossecho/Crossecho.py

crossechoTangoDev/Crossecho/__init__.py

crossechoTangoDev/Crossecho/__main__.py

crossechoTangoDev/Crossecho/release.py

crossechoTangoDev/LICENSE.txt

crossechoTangoDev/MANIFEST.in

crossechoTangoDev/README.rst

crossechoTangoDev/setup.py

crossechoTangoDev/test/Crossecho_test.py

crossechoTangoDev/test/__init__.py

ska_device/LICENSE.txt

ska_device/MANIFEST.in

ska_device/README.rst

ska_device/SKAPowerSupply/SKAPowerSupply.py

ska_device/SKAPowerSupply/__init__.py

ska_device/SKAPowerSupply/__main__.py

ska_device/SKAPowerSupply/release.py

ska_device/setup.py

ska_device/test/SKAPowerSupply_test.py