Major rework of extern ref system for WASM, fixes most possible panics in WASM handling

src/ffi/static_data/move_data.rs

@@ -102,7 +102,7 @@ unsafe extern "C" fn move_data_has_flag(ptr: ExternPointer<Arc<dyn MoveData>>, f
 unsafe extern "C" fn secondary_effect_new(
     chance: f32,
     effect_name: BorrowedPtr<c_char>,
-    parameters: *mut OwnedPtr<EffectParameter>,
+    parameters: *mut OwnedPtr<Arc<EffectParameter>>,
     parameters_length: usize,
 ) -> IdentifiablePointer<Box<dyn SecondaryEffect>> {
     let parameter_slice = std::slice::from_raw_parts(parameters, parameters_length);
@@ -156,9 +156,9 @@ unsafe extern "C" fn secondary_effect_parameter_length(ptr: ExternPointer<Box<dy
 unsafe extern "C" fn secondary_effect_parameter_get(
     ptr: ExternPointer<Box<dyn SecondaryEffect>>,
     index: usize,
-) -> IdentifiablePointer<EffectParameter> {
+) -> IdentifiablePointer<Arc<EffectParameter>> {
     if let Some(v) = ptr.as_ref().parameters().get(index) {
-        (v as *const EffectParameter).into()
+        v.clone().into()
     } else {
         IdentifiablePointer::none()
     }