Release of RTK v2.3.0

Dear RTK users,

RTK v2.3.0 <https://github.com/SimonRit/RTK/archive/v2.3.0.zip> has just
been released, about nine months after RTK v2.2.0. This release is
intended to produce python packages compatible with ITK v5.2.1 (current
release on pypi.org). I will soon prepare another release for ITK v5.3
since ITK v5.3rc01 has been released.

Release notes:
* Improvement of Forbild phantom simulation (for head phantom in particular),
* Refactoring of Cuda handling in CMake,
* Fix and wrap attenuated Joseph and Zeng projectors for SPECT reconstruction,
* Various minor fixes for compilation, CI and install.

Many thanks to all contributors for this release, in alphabetical order:
Lucas Gandel, Laurent Malka, Antoine Robert, Simon Rit and Tomoyuki
Sadakane.

As usual, be aware that we do not focus on releases since we have a
public github repository that we aim at keeping stable. I still
recommend the use of the master HEAD over releases to enjoy the new RTK
developments before their release. Corresponding python packages can now
be downloaded from the Github actions. We still have a few on-going
projects for which we will use and enhance RTK.

Simon (for the RTK consortium)

CMakeLists.txt

@@ -30,7 +30,7 @@ project(RTK)
 
 ## RTK Version
 set(RTK_VERSION_MAJOR "2")
-set(RTK_VERSION_MINOR "2")
+set(RTK_VERSION_MINOR "3")
 set(RTK_VERSION_PATCH "0")
 set(RTK_VERSION_STRING "${RTK_VERSION_MAJOR}.${RTK_VERSION_MINOR}")
 

setup.py

@@ -12,7 +12,7 @@
 
 setup(
     name='itk-rtk',
-    version='2.2.0',
+    version='2.3.0',
     author='RTK Consortium',
     author_email='rtk-users@openrtk.org',
     packages=['itk'],