Upgrade Version Ranges of Dependencies

[hisanhunais]

Purpose

• Upgrade version ranges of the following dependencies
  • guava
  • jackson-databind
  • reflections
  • snakeyaml
• Use the orbit bundles of swagger-core [1] and swagger-jaxrs [2] for version 1.6.9

[1] https://github.com/wso2/orbit/tree/master/swagger-core/1.6.9.wso2v2 [2] https://github.com/wso2/orbit/tree/master/swagger-jaxrs/1.6.9.wso2v2