Bump the version number to 0.8.13.

Changes since 0.8.12:
- Improve SpecificCharacterSet compatibility
- Update maintenance scripts to Python 3
- Improve hash function for tag lookup
- Add soabi to Python modules, versions to hierarchy files
- Update dictionary and UIDs for DICOM 2022b
- Update private dictionaries
- Update minimum cmake version to 3.12
- Remove support for VTK 5

Bug fixes since 0.8.12:
- Add missing vtkScancoCTReader utf-8 conversion
- Do not fail when illegal encapsulation encountered
- Fix typo in installed header directory
- Fix edge case for invalid VR on multiplex values
- Fix overflow when creating OW value from string
- Fix infinite loop caused by garbage at end of file
- Fix the tilted-gantry PatientMatrix for BottomUp reader option
- When reading OsiriX DB, try to recombine series that OsiriX splits

Author: dgobbi

CMakeLists.txt

@@ -14,7 +14,7 @@ include(CTest)
 # Project version
 set(DICOM_MAJOR_VERSION 0)
 set(DICOM_MINOR_VERSION 8)
-set(DICOM_PATCH_VERSION 12)
+set(DICOM_PATCH_VERSION 13)
 set(DICOM_SHORT_VERSION "${DICOM_MAJOR_VERSION}.${DICOM_MINOR_VERSION}")
 set(DICOM_VERSION "${DICOM_SHORT_VERSION}.${DICOM_PATCH_VERSION}")