feat(codegen): support multi-validators

* rename force_wrap to force
* add a bunch of builder methods to Term<Name>
* refactor one tiny location to show off builder methods
* split generate into `generate` and `generate_test`
* create wrap_as_multi_validator function

Co-authored-by: Kasey White <kwhitemsg@gmail.com>

crates/uplc/src/optimize/shrinker.rs

@@ -43,9 +43,9 @@ impl Program<Name> {
                     body: term.into(),
                 },
                 if default_func.force_count() == 1 {
-                    Term::Builtin(default_func).force_wrap()
+                    Term::Builtin(default_func).force()
                 } else {
-                    Term::Builtin(default_func).force_wrap().force_wrap()
+                    Term::Builtin(default_func).force().force()
                 },
             );
         }