[Plugin] enrich problem info.

Signed-off-by: Eric Wang <[email protected]>

Author: skygragon

Diff for: lib/plugins/leetcode.js

@@ -146,6 +146,7 @@ plugin.getProblem = function(problem, cb) {
     problem.templates = pageData.codeDefinition;
     problem.testcase = pageData.sampleTestCase;
     problem.testable = pageData.enableRunCode;
+    problem.templateMeta = eval(pageData.metaData);
 
     return cb(null, problem);
   });