Java serviceability agent to jdwp adapter

sa-jdi was removed from jdk 9, this library should replace it and allow to attach to a process from any java debugger

checked with jdk 6-11 and 12ea

• run java -jar sa-jdwp.jar <pid> (port)
• wait for Waiting for debugger on.. message
• connect java debugger to the host/port provided

To be able to do local build, create gradle.properties file in the project root folder with paths to jdks installations like this:

JDK_16=c:\\Program Files\\Java\\jdk1.6.0_38
JDK_18=c:\\Program Files\\Java\\jdk1.8.0_181
JDK_10=c:\\Program Files\\Java\\jdk-10.0.1