feat: added supported versions to systems.csv

[cka-y]

Closes #659
Extracted and added the supported versions to systems.csv

[richfab]

Thank you @cka-y 🙏

Can we please only include the Official and Release Candidate GBFS versions as discussed? The accepted values can be found here: https://github.com/MobilityData/gbfs/tags

[
  "v1.0"
  "v1.1-RC",
  "v1.1", 
  "v2.0-RC",
  "v2.0",
  "v2.1-RC",
  "v2.1-RC2",
  "v2.1", 
  "v2.2-RC",
  "v2.2", 
  "v2.3-RC", 
  "v2.3-RC2", 
  "v2.3", 
  "v3.0-RC", 
  "v3.0-RC2", 
  "v3.0", 
  "v3.1-RC"
]

Thank you!

[richfab]

This is perfect!
This will help GBFS consumers identify feeds for specific versions 💯
Thank you very much @cka-y for this 👏