Taglist generation: find better place to generate

Taglist is done in two place:

legacy one in config.libsonnet
the new one in config-deployment.libsonnet (multi-runner approach, see grac-phase2.libsonnet)

So for the moment it's impossible for project to add their own tag. Even if gracExtraTagList was here for that purpose.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information