refactor: continuous system is always first discrete subsystem

Author: AayushSabharwal

src/systems/clock_inference.jl

@@ -186,6 +186,10 @@ function split_system(ci::ClockInference{S}) where {S}
         end
         tss[id] = ts_i
     end
+    tss[continuous_id], tss[1] = tss[1], tss[continuous_id]
+    inputs[continuous_id], inputs[1] = inputs[1], inputs[continuous_id]
+    id_to_clock[continuous_id], id_to_clock[1] = id_to_clock[1], id_to_clock[continuous_id]
+    continuous_id = 1
     return tss, inputs, continuous_id, id_to_clock
 end