Pending Reviews page

[Alexandre Julliard]

Folks,

In our grand tradition of shaming people into doing work, after the
Regressions page I'm proud to present the Pending Reviews page:

https://source.winehq.org/reviews

As with the regressions page, the goal should be to *not* be number one
on the list. But feel free to congratulate Huw anyway ;-)

Note that the list is a little overestimated, commenting on the diff
counts as a review but simply adding a note doesn't, so you may see some
MRs in your list that you have actually commented on already. If people
find this thing useful we can try to make it smarter. Feedback is
welcome!