Expose data json files

Author: jdalton

package.json

@@ -34,6 +34,8 @@
     "./src/purl-type": "./src/purl-type.js",
     "./src/strings": "./src/strings.js",
     "./src/validate": "./src/validate.js",
+    "./data/npm/builtin-names.json": "./data/npm/builtin-names.json",
+    "./data/npm/legacy-names.json": "./data/npm/legacy-names.json",
     "./package.json": "./package.json"
   },
   "sideEffects": false,