This change updates the Gradle version of the supplied Gradle wrapper to
version 7.2.

* Update Gradle to version 7.2
* Address incompatibilities with version catalog
* Remove opendc-format module.

This change extracts the Parquet helpers outside format module into a
new module, in order to improve re-usability of these helpers.

This change starts the process of moving the different trace formats into
separate modules. This change in particular moves the GWF trace format
into a new module, opendc-trace-gwf.

Furthermore, this change also implements the trace API for the GWF
module.

This change updates the code for the Bitbrains trace reader and upgrades
the TraceConverter to re-use existing code of the Bitbrains trace
reader.

This change eliminates all Hadoop dependencies that are not necessary
for Parquet to work correctly. As a result, the number of dependencies
should now be greatly reduced, which in turn leads to less artifacts
that need to be retrieved at build time.

This change updates the format implementations that use Parquet by
switching to our InputFile implementation for local files, which
eliminates the need for Hadoop's filesystem support.

This change adds an implementation of Parquet's local InputFile in order
to eliminate the dependency on the entire Hadoop system. This
implementation allows users to read Parquet files locally without
needing a Parquet filesystem implementation.

This change fixes the SLF4J logging warnings that occur during the
tests.

This change adds support for the Gradle version catalog feature in our
build configuration. This allows us to have a single file,
gradle/libs.versions.toml, which contains all the dependency versions
used in this project.