Releases memory used by the AnnotationController and all of its annotations.
Atalasoft.dotImage (in Atalasoft.dotImage.dll) Version: 18.104.22.168.0.297 (.NET 4.5.2, x86)
All annotations and supporting objects implementing the IDisposeable interface will be disposed in this
process. To prevent them from being disposed they must be removed from the controller prior to calling this method.