feat: Add baseline rf1 querier component

[benclive]

What this PR does / why we need it:

• Adds a new cloned querier component for the RF1 work
• This currently does the same as the existing querier except the tail endpoints return errors - it will be massively updated as we go.
• Enabling this component replaces the existing querier during init due to taking over the same APIs, so its only enabled if either the target is set to "querier-rf1" or the target is "ALL" and the "querier-rf1.enabled" flag is set.
  • This isn't super robust - I'd like to find a clearer way which doesn't risk the chance of accidentally disabling the existing querier implementation when this is enabled.

[cyriltovena]

LGTM