[BlockInfo] Wan

[Haoming02]

1. Added 3 block informations to the transformer_options for Wan:
   • block_index - the index of the current block
   • total_blocks - the total amount of blocks of that type
   • block_type - single / double
2. For Wan S2V, added the transformer_options to the forward functions
3. New: Also added the block informations to Wan Animate

[Kosinkadink]

Wan block info works, have not tested S2V yet.

[Kosinkadink]

For this, could you convert the block info back to using ints? torch.compile graph breaks should be largely mitigated now by https://github.com/comfyanonymous/ComfyUI/pull/11317

[Kosinkadink]

Tested S2V, still works, so after the int change is made, I can immediately merge!

[Kosinkadink]

perfect, thanks!