Better way to specify node layers

[nix-apollo]

It could be nice to have some shortcuts to specify sets of node layers, as we'll often want to run with 50+ node layers.

Proposal: map * as a wildcard over potential node layers. This gives the following for free

Include all potential node layers (can maybe skip some that are just linear transformations):

- *

Include some set of node layers in every block:

  - ln1.*
  - ln1_out.*
  - ln2.*
  - ln2_out.*

Include every node layers in one block:

- *.7