Add missing xrayDataTtl field to XraySettings

[XraySettings](https://github.com/jfrog/artifactory-client-java/blob/3824e1ab9faee18f7bf94a9680707d6f5350c7fb/api/src/main/java/org/jfrog/artifactory/client/model/repository/settings/XraySettings.java) can be used to enable/disable Xray for a given repository. However, it only supports the `xrayIndex`, but not the `xrayDataTtl` setting for the Xray configuration.