Make certificate details mandatory somehow

For example visit a HTTPS Site, it should show more info that "Verified and encrypted connection".

Should show (like a Doorhanger, Chrome/Firefox instead of a window)

* Who the site is ran by/ the URL (and show certificate)
* Who it is verified by
* When I have visited this site (the last time if i did) and if i have any cookies for that site.
* Type of encryption (SSL 1.1, 128bit etc.)

With a more info button which includes
* all media on the page (with their URLS)
* Permissions per site (I should write a seperate bug?)

We have this already - the actual bug here is that it's optional because gcr-3 requires GTK+3 and may not be available on all systems.

One option might be to replace the GcrCertificateDetails widget to get a) gcr-3 parsing on any GTK+ version b) allow requiring it always c) have a chance to have a more Chrome-like, simpler design for certificates. If I have time I will take a further look in this direction - I'm strongly in favour of finding a compromise that would let this feature be always enabled.

To be clear, this bug is about having certificate details in all builds. The other ideas mentioned are nice but require bug 1207465 and need separate bugs.