This generates the correct `.pl` files for adding Eagle Mode commands. This
commit does not yet contain the wiring for adding these into Eagle Mode
directly, which is a bit involved.
Change-Id: I7d88128ba3ddaebfbb618db45e8fa843a3f17dea
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12366
Tested-by: BuildkiteCI
Reviewed-by: emery <emery@dmz.rs>
