* ✨  Flag to specifie whether the @generated annotation is added

* 🐛  Add missing parameter to sbt plugin

* 👌  Fix file spacing, code style

* 🎨  fix constructor code style

* 🐛  Fix sbt plugin setting flag

* ✅  Add tests for addGeneratedAnnotation flag

* fix ParameterInput toString bug

* fix ParameterInput toString bug

* Optimize useless `val`
Others have been done at kotlin
https://github.com/kobylynskyi/graphql-java-codegen/issues/420

* update

* fix GraphQLRequestSerializer toString on scala.Option/Seq

* support kotlin

* fix unit test

* fix scala

* add plugin, fix doc

* Do not use empty data class

* update

* update

* add unit test.
remove tostring

* update

* update

* update

* update

* refactor

* add unit test

* support option  any where.
https://github.com/kobylynskyi/graphql-java-codegen/issues/415

* add task  with kotlin in gradle

* 🚀 supportScalaOption for primitive type

* fix

* add unit test for scala Option

* change var name

* Complete Scala test

* For kotlin, 'getUseOptionalForNullableReturnTypes' is ignored, which is compatible with the nullable semantics of any graphql.

* add unit test

* Refactor for multi-language support #407

* SBT-plugin support for multi-language refactoring (#419)

* support sbt

* support sbt
Co-authored-by: 梦境迷离 <568845948@qq.com>

* Small format error

* use case class for `XXParametrizedInput` and create apply for XXGraphQLOperationRequest

* use case class for `XXParametrizedInput` and create apply for XXGraphQLOperationRequest

* change interface method to properties

* change interface method to properties

* Optimize equals

* 1. Refactoring `toString` and `equals` methods(Simplify code bloat caused by large number of fields).
2. For Scala(after that, kotlin will do the same), the `builder` is no longer generated by default.

* rm a invalid `if`

* rm a invalid `if`

* init support scala

* init support scala

* update

* add support for gradle、maven

* add unit test for var field in case class

* fxi maven

* Minor refactoring
Co-authored-by: NBogdan Kobylynskyi <92bogdan@gmail.com>