cashocs v2.3.0

What's Changed

New Features and Improvements

• Nested problems properly use the output configuration by @sblauth in #504
• Use the python logging library for logging in cashocs by @sblauth in #507

Bug Fixes

• Fix bugs for topology optimization in parallel by @sblauth in #514
• Make the inner optimal control problem silent in topology optimization by @sblauth in #515

Configuration changes

• Configuration treatment with extensions by @sblauth in #501

Changes to the documentation

• Add documentation for the configuration parameters for topology optimization by @sblauth in #518

Full Changelog: v2.2.0...v2.3.0