change imports of geant_service_orchestrator to gso

README.md

gso/main.py

gso/products/__init__.py

gso/products/product_types/device.py

gso/services/ipam.py

gso/services/provisioning_proxy.py

gso/services/resource_manager.py

gso/workflows/device/create_device.py

gso/workflows/device/terminate_device.py

tox.ini