This change removes the distribution conventions used by the root
project of OpenDC. Previously, we used this to build a single
distribution for OpenDC containing the experiment uberjars and scripts
to start OpenDC.

However, with the introduction of the Quarkus-based web server, we have
decided to split releases into (potentially) multiple distributions
(e.g., one for the web server, one for just the web runner, etc.).

Furthermore, the implementation of this convention caused issues with
several other Gradle plugins.

This change updates the simulator dependencies to the latest available
version where possible.

This change removes the OpenDC Harness modules from the main repository.
We have made the decision to take a different direction regarding the
specification and execution of experiments. The design of the current
harness does not integrate well with the specification of experiments in
the web interface. The new version focuses on proper integration with
the web interface, as well as via the command line interface.

This change updates the Gradle configuration to include experiments in
the main distribution of OpenDC. Users can directly execute the
experiments from the command-line without having to recompile the entire
code-base.

This change configures the Distribution plugin for the root project and
aggregates the artifacts of the other projects to generate a single
distribution file containing all libraries and binaries.