Dicomweb-client

Bug fixes

* Fix transforming data sets in DICOM JSON format into `pydicom.Dataset` objects

Bug fix

Fix lookup with data element tag given an attribute keyword.

New features
* Support specifying CA bundle and client certificate files via command line interface
* Issue warning for QIDO-RS queries when server returns only a subset of search results and there are remaining results that can be requested
* More usage examples to documentation

New features
Add support for client SSL certificates

Bug fixes

* Remove "boundary" in multipart/related accept header field, which broke compatibility with DCM4CHEE.

API changes

- rename `DICOMWebClient` class to `DICOMwebClient` for consistency with client implementations in other languages (e.g., JavaScript [dcmjs-org/dicomweb-client](https://github.com/dcmjs-org/dicomweb-client))

New features

- add parameters to `DICOMwebClient` class constructor to specify URL path prefix for different RESTful services (QIDO-RS, WADO-RS, STOW-RS) - this allows using the same client instance across services even if they have different locations