…erse-merged from commit 4bf538a)
The Statute field in Zotero will soon be mapped to legislation. No styles yet discriminate between enacted laws (legislation) and proposed law drafts (bill), so it is sufficient to add legislation to tests where it is missing. This changeset covers styles where bill was included in tests, but legislation was not. There should be no effect on current style behavior. Styles receiving this change will not be affected by the new mapping, but it will be open to style designers to apply separate treatment to bills and enacted legislation.
…nse if not already present.