Synchronize contributions from real-time-cloud project with cloud-metadata if-plugin

The real-time-cloud project has been developing a table of values for cloud provider region information, and working towards an IF implementation.

In the meantime, an early version of the table, with outdated headers and missing data was copied into cloud-metadata as gsf-data.csv and was updated to include geolocation information, and some newer data.

We now want to contribute a final version of the table and have to merge the updates, need to discuss this jointly between the real-time-cloud team and the if-plugin cloud-metadata contributors so that we don't stomp on each others work.