Visualise multiple operators on one cable

[rhiaro]

Will we need to track any additional span data in the consolidated output to visualise this? Does this relate to ho we merge duplicates (#17)?

[stevesong]

I imagined that the organisation role field would serve for this.

https://github.com/Open-Telecoms-Data/open-fibre-data-standard/blob/0.3-dev/codelists/open/organisationRole.csv

[rhiaro]

Note: role gets pulled through into the geoJSON under the physicalInfrastructureProvider or networkProviders objects