Test setting fields from a Phantom @view

[pvillacorta]

phantom = ...
phantom_view = @view(phantom[p])
phantom_view.param .= 0.0
@test phantom_view.param == phantom[p].param

EDIT 2025/12/01:
This is more difficult to implement with the motion field, which is why this:

@view(phantom[1:100]).motion = Translate(0.0, 0.0, 0.1, TimeRange(0.0, 1.0))

Does not work. What needs to be done in that case is:

phantom.motion = Translate(0.0, 0.0, 0.1, TimeRange(0.0, 1.0), SpinRange(1:100))