More useful information in Test Summery


I recently updated our builds to use xunit in order to have it in Test summery.
Currently you show a text representation of what you can see down to the flow when you run the tests.
It would be nice to improve this part and for example show:
How many tests has been added and if possible, a chart that shows how different builds effected the quality of tests (mostly passing and failing for sure, who can assert the quality by a chart!)
On the side note, I always wished you can have a functionality to comment on the PR after the build has been finished to say for example: ran X number of tests and these failed.