JUnit rule for debug probes

[qwwdfsad]

It would be useful to have a debug-probes specific rule for unit tests to avoid boilerplate and time-specific races indump.

For example, for the following code:

@Rule
val debug = DebugProbesRule(timeout = ...)

@Test 
fun test() {
   hangJob.join()
}

the rule installs and uninstalls debug probes before and after tests and dumps all coroutines on timeout