CofR getter and setters (#1366)

* offset only getters and setters * fix case where rotation axis is on the detector * simplify system description tests * simplify code * added unit tests * fix defaults * updated changelog
TomographicImaging · Nov 15, 2022 · 76e5014 · 76e5014
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,9 @@
+* Next
+  - Added convenience centre of rotation methods to `AcquisitionGeometry` class.
+    - `get_centre_of_rotation()` calculates the centre of rotation of the system
+    - `set_centre_of_rotation()` sets the system centre of rotation with an offset and angle
+    - `set_centre_of_rotation_by_slice()` sets the system centre of rotation with offsets from two slices
+
 * 22.1.0
   - use assert_allclose in test_DataContainer
   - added multiple colormaps to show2D