Booleans: a prism cut beside the target's other faces takes the exact 2D route in a column (#1629)

Thanks @phanoob.

crates/engine/src/cmd/features.rs

@@ -1992,6 +1992,10 @@ fn offset_face(s: &mut Session, p: &Value) -> Result<Value> {
 #[path = "patterns_tests.rs"]
 mod patterns_tests;
 
+#[cfg(test)]
+#[path = "prism_local_tests.rs"]
+mod prism_local_tests;
+
 #[cfg(test)]
 #[path = "revolve_convention_tests.rs"]
 mod revolve_convention_tests;