Write all results of one test class into one result file about recheck-web

[beatngu13]

To add some more details: According to @kema91 and @oezelenes, the problem is essentially that the replay result is stored along with the instance of RecheckImpl. Since we create a new object for each test (@Before/@BeforeEach/…), this gets overwritten.

However, I think we want to use that lifecycle because a) to be compliant with how Selenium tests are usually written and b) to not share a single RecheckImpl instance among multiple tests. What we need is a single instance (not necessarily a singleton) that stores the test results and that can be accessed from each RecheckImpl instance.

Suggestions?