feat: Delegate java.util.concurrent.Executor

[xyohn]

Your question

Hi,I find that SofaTracer can not support delegating java.util.concurrent.Executor,so that it can not work properly on some thread pool such as org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor.
I think it is a common requirement, and I will create a pull request to support it.

Your scenes

SofaTracer can not support delegating java.util.concurrent.Executor,so some thread pool cannot work with SofaTracer

Your advice

support delegateing java.util.concurrent.Executor

Environment

• SOFATracer version: 3.1.3
• JVM version (e.g. java -version):
• OS version (e.g. uname -a):
• Maven version:
• IDE version: