Fixes #3998 and allows per test method screen recording

[MartinAhrer]

This pull request is related to issue #3998.

BrowserWebDriverContainer is designed to execute each test in a fresh container.
However this is slow and not an option especially when test execution can't be parallelized.

Instead of recreating a fresh BrowserWebDriverContainer instance it may be sufficient to just re-create the VncRecorderContainer for each test.

This pull request offers a new method reinitializeVncRecorderContainer that tears down the vncRecordingContainer and creates a fresh instance. So it comes with out side effects of breaking existing functions.

With that update it is fairly simple to create a subclass of BrowserWebDriverContainer to take care of re-creating the vnc recorder by overriding the afterTest method.

class VncRecordingPerTestMethodBrowserWebDriverContainer<T extends VncRecordingPerTestMethodBrowserWebDriverContainer<T>>
		extends BrowserWebDriverContainer<T> {
	@Override
	public void afterTest(TestDescription description, Optional<Throwable> throwable) {
		super.afterTest(description, throwable);
		reinitializeVncRecorderContainer();
	}
}