implement import & scopedImport (WIP, ResolvePath resolves to string)

fix-builtins/src/lib.rs

@@ -247,6 +247,9 @@ pub enum PrimOpPhase {
     CallFunctor1,
     CallFunctor2,
 
+    ImportFinalize,
+    ScopedImportFinalize,
+
     Illegal,
 }