move test files and lib files to separate folders

packages/bbob-parser/lib/parse.js

@@ -0,0 +1,11 @@
+const Tokenizer = require('./Tokenizer');
+const Parser = require('./Parser');
+
+module.exports = function parse(input, options) {
+  const tokenizer = new Tokenizer(input);
+  const tokens = tokenizer.tokenize();
+  const parser = new Parser(tokens, options);
+  const ast = parser.parse();
+
+  return ast;
+};