[tech] Pre-generated trust stores for various Gemini clients

[Stephane Bortzmeyer]

On Wed, Apr 28, 2021 at 05:47:29PM +0000,
 nervuri <nervuri at disroot.org> wrote 
 a message of 81 lines which said:

> Probably the big issue with this idea is that client developers may
> not want to bundle, for instance, Let's Encrypt cert fingerprints,
> as they change every 2-3 months.

Note that it is a reason to use only the public key for TOFU, not the
entire cert, since this public key can be static.