Adjust the tool access reports

[prioux]

We have an admin-only interface to query the system and produce several types of reports related to which users have access to which Bourreaux and Tools.

The report makers were created a long time ago and they work fine, except at the time the production system only had less than a hundred users. The reports try to show a list of all users with 'access problems' in one column of their tables. That generates a HUGE HTML table nowadays, and it's meaningless.

I suggest we just remove the column "users with access problems" from these reports.

[prioux]

We could replace the column with two counts instead, something like

"23 users have access, 2715 users do  not have acces"

(nicely colored in green and red too, why not)