[BUG] Typescript bindings: contracts

**Describe the bug**

Any entrypoint NOT included in a '#[starknet::interface]' is ignored by codegen.

ex: 
```
  #[generate_trait]
    #[abi(per_item)]
    impl ExternalImpl of ExternalTrait {
        #[external(v0)]
        fn my_func( ......
```

or 
```
 #[external(v0)]
  fn my_func( ......
```