Type check and coerce arguments to user functions and return values from std Rust functions (#6958)

* Shuffle around function call code

Signed-off-by: Nick Cameron <nrc@ncameron.org>

* Refactor function calls to share more code

Signed-off-by: Nick Cameron <nrc@ncameron.org>

* Hack to leave the result of revolve as a singleton rather than array

Signed-off-by: Nick Cameron <nrc@ncameron.org>

---------

Signed-off-by: Nick Cameron <nrc@ncameron.org>

rust/kcl-lib/std/sketch.kcl

@@ -277,4 +277,4 @@ export fn revolve(
   tagStart?: tag,
   /// A named tag for the face at the end of the revolve.
   tagEnd?: tag,
-): Solid {}
+): [Solid; 1+] {}