Rename daemon CLI command to cache

[johanbrandhorst]

Deprecates the boundary daemon command in favor of boundary cache. It also introduces a warning to users using the old command:

$ boundary daemon
The 'daemon' command is deprecated and will be removed in a future release. Please use the 'cache' command instead.
Usage: boundary cache [sub command] [options]

  This command allows interacting with the Boundary cache.

  Start a cache:

      $ boundary cache start

  For a full list of examples, please see the documentation.

Subcommands:
    add-token    Add an auth token to a running boundary cache
    start        Start a Boundary cache
    status       Get the status information of the running boundary cache
    stop         Stop the Boundary cache

[irenarindos]

Looks like you need to also update website/data/docs-nav-data.json to reflect these changes

[stellarsquall]

✅