Add Rule.parser property for custom rules to specify which Markdown parser output they use, honor it strictly, and add full type support.

lib/md055.js

@@ -19,6 +19,7 @@ module.exports = {
   "names": [ "MD055", "table-pipe-style" ],
   "description": "Table pipe style",
   "tags": [ "table" ],
+  "parser": "micromark",
   "function": function MD055(params, onError) {
     const style = String(params.config.style || "consistent");
     let expectedStyle = style;