asciidoc-0.1: test/asciidoctor/ulist/checklist.test

- [*] checked
- [x] also checked
- [ ] not checked
-     normal list item
>>>
Document
  { docMeta =
      Meta
        { docTitle = []
        , docTitleAttributes = Nothing
        , docAuthors = []
        , docRevision = Nothing
        , docAttributes = fromList [ ( "sectids" , "" ) ]
        }
  , docBlocks =
      [ Block
          mempty
          Nothing
          (List
             CheckList
             [ ListItem
                 (Just Checked)
                 [ Block
                     mempty Nothing (Paragraph [ Inline mempty (Str "checked") ])
                 ]
             , ListItem
                 (Just Checked)
                 [ Block
                     mempty Nothing (Paragraph [ Inline mempty (Str "also checked") ])
                 ]
             , ListItem
                 (Just Unchecked)
                 [ Block
                     mempty Nothing (Paragraph [ Inline mempty (Str "not checked") ])
                 ]
             , ListItem
                 Nothing
                 [ Block
                     mempty
                     Nothing
                     (Paragraph [ Inline mempty (Str "normal list item") ])
                 ]
             ])
      ]
  }