Sofie Aastrup

Gives the user the option to add a guide image directory when creating a new project. Gives the user the option to crop image for fiber break segmentation.

fixes bug in axial slice indicator and adds sagittal slice indicator

Gives the user the user the ability to view preliminary segmenations, if they are added to the project, and convert the preliminary segmentations to annotations.

Adds the metric plot from RootPainter to RootPainter3D