Currently the backend can supply profiles and images of any Stokes parameter. We need to extend this to PI (polarized intensity) and PA (polarized angle) so the backend will use Q and U profiles to derived PI and PA profiles. Fractional quantities should be supported too.

This includes:

• profiles
• contours
• raster image

ref: https://github.com/CARTAvis/carta-frontend/issues/713