rename AbstractStimulus -> Stimulus

crates/coremem/src/meas.rs

@@ -688,7 +688,7 @@ pub mod test {
     use crate::cross::step::SimMeta;
     use crate::geom::Index;
     use crate::sim::{Fields, GenericSim, StaticSim};
-    use crate::stim::AbstractStimulus;
+    use crate::stim::Stimulus;
 
     struct MockSim {
         e_field: Vec3<f32>,
@@ -715,7 +715,7 @@ pub mod test {
         fn put_material_index(&mut self, _at: Index, _m: Self::Material) {
             unimplemented!()
         }
-        fn step_multiple<S: AbstractStimulus>(&mut self, _num_steps: u32, _s: &S) {
+        fn step_multiple<S: Stimulus>(&mut self, _num_steps: u32, _s: &S) {
             unimplemented!()
         }
         fn to_static(&self) -> StaticSim {