honey: add HONEYCOMB_SUFFIX and HONEYCOMB_DISABLE
Created by: keegancsmith
I want to enable honeycomb on dogfood. Honeycomb's official documentation recommends creating a new dataset rather than adding a column for to match against. In particular they give examples of "-dev" suffix. So this commit adds support for a suffix for each dataset name via the envvar HONEYCOMB_SUFFIX.
In particular I want to log our search core debug dataset. This doesn't respect honey.Enabled, but rather its own envvar. So rather than enabling everything, we add HONEYCOMB_DISABLE so Enabled returns false. This way at first we will just get our debug data.
This commit also removes the unused "honey.Builder".