feat(cli): Expand options for storing values

[kriskowal]

In, #2226 we gain the ability to marshal copy data and remotables that are backed by formulas.

This change surfaces these features to the CLI by exposing a variety of flags.

> endo store --json '{"hello": "world"}' --name greeting
> endo show greeting
{ hello: 'world' }

> endo store --text 'Hello, World!' --name greeting
> endo show greeting
Hello, World!

> endo store --bigint 42 --name meaningful-bigint
> endo show meaningful-bigint
42n

> endo store --json-stdin --name greeting < <(jq -n '{hello:"world"}')
> endo show greeting
{ hello: 'world' }

> endo store --text-stdin --name greeting < <(echo hi)
> endo show greeting
hi

> endo store --stdin --name greeting < <(echo hi)
> endo show greeting
Object [Alleged: Readable file with SHA-512 d78abb05...] {}
> endo cat greeting
hi

[rekmarks]

One suggestion to DRY up store.js, otherwise LGTM.

[rekmarks]

Ship it!