Support for JFR Event Streaming

[REASY]

JEP 349: JFR Event Streaming has been around for some time. Should be there a support for JFR event streaming?

Consideration regarding performance, the article A Closer Look at JFR Streaming used OpenJDK 15 and found the performance isn't great.

[kcrimson]

There is initial support for JFR in my PR, JFR streaming looks also like interesting option, my PR uses jdk.jfr.recording or jcmd (it depends which strategy you choose), https://github.com/grafana/pyroscope-java/pull/136

[viluon]

Consideration regarding performance, the article A Closer Look at JFR Streaming used OpenJDK 15 and found the performance isn't great.

@REASY that article contains no representative benchmarks of JFR streaming. The allocations are dominated by producing 1.5 GB of Strings and writing them to a file via a BufferedWriter, see here.

I wouldn't say the author "found the performance isn't great," given that they open the benchmark section with

Benchmarks of Using JFR Streaming Wrongly

For laughs and giggles, …