Style editor: Allow user to set dynamic rotation value
Is your feature request related to a problem? Please describe. In the style editor, To set a symbol rotation based dynamic value (depending on a field value), the SLD code has to be edited.
The visual editor only allow the user to set a static value:

Describe the solution you'd like To make the style editor more comprehensive for users,
Add the capacity for the user to set the rotation either by two ways:
- Static: Refer to the feature already implemented (see my pictures aboves)
- Dynamic: The user
Prior the user set the rotation value, he has to select the mode, as show on the sketch below
- No rotation (default value)
- Static rotation
- Dynamic rotation
On the mode is selected, different field appears depending on the user's choice (Dynamic rotation: on the left of the picture below ; Static rotation: on the right of the picture below):

Inside the SLD, the tag <ogc:PropertyName>BEARING</ogc:PropertyName> the value of BEARING being the name of the layer field used to set the rotation value.
Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.
Additional context Add any other context or screenshots about the feature request here.