* Add java-jersey2 sample with mixed oneOf
* [java][jersey2]Fix client generation if oneOf contains an array type
Changes:
* Change jersey2/oneof_model template to use composed schema data
* Change adding of imports in AbstractJavaCodegen to use composed schema data
* Add escapedDataType property to CodegenProperty so that the data type
may be part of identifiers (e.g. in getters)
* Update samples
* Add sample for multiple array in oneOf
* Fix generation of constructors with same erasures
* Update samples again
* Version bump
* Add new sample folders to CI
* Make primitive handling more explicit
* Replace escapedDataType property with Mustache lambda
* Update samples with new primitive handling and sanitization lambda
