Verticox+

What's Changed

We moved from regular verticox to verticox+. In verticox+ the outcome data doesn't have to be shared with all nodes.

• 23 client interface by @dsmits in #33
• Get_featurenames gives proper output by @dsmits in #34
• Added instructions in readme by @dsmits in #38
• Upgraded vantage6 to latest version by @dsmits in #44
• Merge verticox+ to main branch by @dsmits in #62
• 60 add java to ci by @dsmits in #70

Full Changelog: v0.1.2...v0.2.0