Support windows as operating system

As mentioned in https://github.com/async-profiler/async-profiler#community-supported-builds there is a community supported windows version available for the async profiler.

Maybe we can make windows a first class citizen and also support it in the java agent.

Start by reviewing the async-profiler community-supported Windows version referenced in the issue and the Java agent integration in this repository. Determine the platform requirements and integration scope before proposing changes. Done means Windows is supported as a first-class operating system by the Java agent, with the necessary behavior verified.

Written by the indexing model from the issue text.