Feature Req: Compound config support.

Are there any plans to add support for compound configurations (i.e. as the rest of vscode can do through defining compound configurations in launch.json)? Use case is JNI interfaces; want to launch a java test, and simultaneously launch a GDB C++ debugging instance that attaches to java to allow debugging when we reach C++ code.

Right now the specification of java.test.config outside of launch.json and the automated generation of the java side test config (to correspond to the method that we hit debug on) means we can't define a compound debugging config.

Obvious workaround right now is to have multiple instances of vscode running, and manually attach after launching and hitting a breakpoint on the java side, but would be immensely useful to have this natively supported in vscode-java-test.

Start by reviewing how java.test.config is specified outside launch.json and how the Java test configuration is generated for a debug action. Compare that behavior with VS Code compound configurations in launch.json; done should mean a Java test and a GDB C++ debugging instance can be launched together for JNI debugging.