* Fix Kotlin Multiplatform Test
- Remove obsolete 'GRADLE_METADATA' Gradle preview flag from
Kotlin Multiplatform settings.gradle template file.
- Update Kotlin Version to 1.5.31
- Update coroutines, serialization and Ktor versions to the versions
recommended for usage with Kotlin 1.5.31
see https://kotlinlang.org/docs/releases.html#release-details .
Fixes https://github.com/OpenAPITools/openapi-generator/issues/10898
* Add 'clean' task to pom.mustache and reformat sample pom.xml
* Use stable 1.3.0 version of Kotlin serialization
* Update Kotlin Multiplatform with Kotlin 1.5.10, Ktor 1.6.0 and Kotlinx.serialization 1.2.1
* remove @Serializable from interfaces
* Using 'String(CharArray): String' is an error. Use CharArray.concatToString() instead
* Fix, RequestConfig needs a type to infer type variable T
Fixes from @DevSrSouzaern
* Fix `private` keyword not being handle as a reservedWords
* Fix enum serialization generation
* Migrate gradle build to Kotlin DSL
* update samples and documentation
* PR Review changes
* sample update
* revert non multiplatform kotlinx_serialization removal
* default Json{} in ApiClient
* revert accidental version push for jvm client
* Match ktor and Kotlinx Serialization version in documentation and build.gradle.kts
* remove const from JSON_DEFAULT
* Update AbstractKotlinCodegen.java
Co-authored-by: Gabriel Souza <devsrsouza@gmail.com>
Co-authored-by: ern <ern@ti8m.ch>
