Preparation of release v2.0.0

• Update changelog
• Update feature set
• Move everything related to 5G above 4G in the feature set

Planned changes:

• Update feature set figures with 5G (not done in the end)

Planned post-merge steps:

• Merge to master
• Tag v2.0.0
• Make a release on Gitlab
• Make a public announcement will be mentioned in the newsletter