Upgrade dependencies

This release updates various dependencies along with a few backward compatible cleanup.

1. Change source and target compatibility of logging library to Java 9.
2. Change source and target compatibility of remaining code bits to Java 21.
3. Switch from Gradle 3.3 to Gradle 8.6.
4. Enable multi-project based build.
5. Use latest version of dependent libraries.

Please refer to the Readme.md on the main page for information about the offered libraries+tools and how to use them.

First release of the tool set :)

These instrumentation-based tools enable collection of dynamic/runtime information about JVM based code. Please refer to the Readme.md on the main page for information about the offered libraries+tools and how to use them.