Statistics gathering disabled (Web, DS, TX)

Most (all?) the statistics gathering across WF are in (default) disabled state. Like this we don't have any metrics for Web, Datasources or Transactions.

https://github.com/hawkular/hawkular/blob/1.0.0.Alpha8/dist/src/main/resources/wildfly/patches/standalone.xsl#L143-L155 shows how it was done, previously to enable them.