v2.1.2

• refactor(binding): support multiple tags
• chore(binding): Improve checking performance
• feat(binding): Support omit field
• fix(binding): fix binder of query
• When there are multiple tags, the order in which to try to bind is:
  1. path
  2. query
  3. rawbody
  4. form
  5. protobuf
  6. json
  7. header
  8. cookie