* fix documentation
* improve build.gradle.mustache and pom.xml.mustache to assume different serialization libs jackson or micronaut-serde-jackson
* improve pojo.mustache to skip generating @JsonDeserialize as for micronaut-serde-jackson
* improve model generating by removing visible flag from @JsonTypeInfo as it is not supported by micronaut-serde-jackson
Co-authored-by: dmitry.kubakhov <dmitry.kubakhov@check24.de>