refactor(core): export types from types.js in core index file

Signed-off-by: J3m5 <5523410+J3m5@users.noreply.github.com>

Author: J3m5

src/core/index.ts

@@ -3,3 +3,4 @@ export * from "./Field.js";
 export * from "./Operation.js";
 export * from "./Parameter.js";
 export * from "./Resource.js";
+export * from "./types.js";