Add command to populate database with actor codes and versions

[frrist]

Description

We want the output of the lily chain actor-codes command in a database table somewhere. Perhaps this could be a part of the migrate command.

Acceptance criteria

• define a scheme for actor codes to versions
• define a schema for actor method names to numbers
• share schema in issue before implementing

Where to begin

Here is where the information is currently collected for CLI inspection: https://github.com/filecoin-project/lily/blob/master/commands/chain.go#L47

[kasteph]

We need to have a table produced from builtin actors that map from actor versions to CIDs.

A table that looks like below:

I.e.:

cid string
code string

Where to begin

• https://github.com/filecoin-project/lotus/blob/ntwk/hyperspace/build/builtin_actors_gen.go

[kasteph]

note: no need to make a migration since this should not be required for somebody to operate a lily node?