Make the "Flush All" button clean all the information on the Cache statistics

If you go to Confluence Admin > Cache Management (in the show advanced view) and hit the flush all button you will see all the statistics will be refreshed except by the "Hit / Miss / Evicted".

At current moment the only way to reset that statistic is by Clearing Confluence Plugin Cache, based on that I raised this improvement so that the flush all button also reset those.