Update to Connector v0.2.0

[tygross025]

What this PR changes/adds

Fixes compatibiliy issues with EDC Connector >= v0.1.0.

Further notes

The Dashboard can be run using the EDC MinimumViableDataspace Connector. In the MVD repository a few changes are needed.
Under system-tests/resources/appconfig/company[1-3]/app.config.json add/configure the fields:

• "dataManagementApiUrl": "http://localhost:919[1-3]/api/management/v2"
• "catalogUrl": "http://localhost:919[1-3]/api/management"
  note: [1-3] is for company 1 through 3

Then the Connector and DataDashboard can be run as described in the MinimumViableDataspace README

Linked Issue(s)

Closes #26

Checklist

• added appropriate tests?
• performed checkstyle check locally?
• added/updated copyright headers?
• documented public classes/methods?
• added/updated relevant documentation?
• added relevant details to the changelog? (skip with label no-changelog)
• formatted title correctly? (take a look at the CONTRIBUTING and styleguide for details)

[tygross025]

Removed the need to change app.config.json in MinimumViableDataspace repository. This also changed the Dashboard so that it uses the newest v3 Asset Api in Connector v0.2.0