move queries.yaml into a queries subdir

this handles the piece of work we've been talking about for a while
in moving the queries.yaml file into a directory with a bunch of
files. These remain yaml so that they can be tagged with additional
metadata. This would support the concept of soft deleting as well
as other useful meta data to gauge our evolution of the bugs we
track over time.

This should see some real review as it's extensive enough of a
change that the existing tests might not be sufficient. However it
should be enough to move this forward quite a bit.

This also makes future looking statements about doing soft deletes
with a resolved_at keyword in the future. That implementation will
come later.

Change-Id: I86317fcf6f1886ab5b6c0ee154b29e71865c52b7