Currently, the object context menu includes some inconsistencies
between object types. This is a small patch that fixes these.
- Adds the same ability to Join and Set Origin
to all supported object types.
- Adds Set Active Camera for cameras.
- Adds Adjust Stroke Width for GP Objects.
- Adds Trace Image to Grease Pencil for Image Empties.
Reviewed By: #grease_pencil
Ref D10144