* [REQ][JAVA]: Add option to generate arrays with "uniqueItems" true as Sets rather than Lists
- Update Java code generation to use sets instead of lists when uniqueItems is set to true
- Add import resolution for sets
- Add tests and fix broke tests
resolve#5254
* Update Javascript, Perl, Python and Ruby to preserve current functionality.
* Switch set implementation to LinkedHashSet
* Fix missing import for uniqueItems used on param.
* Fix missing import and return type for responses with uniqueItems
* Fix default values for array of enum
* Update generated samples
* fix merge issue
* Update generated samples
Co-authored-by: William Cheng <wing328hk@gmail.com>
* implemented core integration with play 2.4 ws
* added shell script to test on CI
* added shell script to composite file for all java generators
* added some comments
changed promise param to Response<T> to allow access to http status code and raw response if needed
* removed unnecessary whitespace changes
* added java7 compatibility, play ws deps to pom.xml
* added generated play24 client
* fixed imports
