JSON-B should process any field/method with JSON-B annotations regardless of visibility

@JsonbProperty annotation if put on not public field/getter/setter must automatically make it visible for JSON-B engine.

No source file or test is named in the issue. Start by locating the JSON-B processing for @JsonbProperty and checking how visibility is currently determined; compare behavior for non-public fields, getters, and setters. Done means annotated members are processed regardless of visibility, with tests covering each member type.

Written by the indexing model from the issue text.