Add IPAdapterFromParamsBatch node

[ErwannMillon]

This PR creates a new node, IPAdapterFromParamsBatch, which inherits from IPAdapterBatch.

It was previously impossible to use weight schedules with the IPAdapterFromParams node as unfold_batch was not enabled.

[cubiq]

for the batch option you need to add

    def __init__(self):
        self.unfold_batch = True

but for the attention masking I need to do some testing with animations

[ErwannMillon]

lol oops typo, tested with the unfold_batch = True but ctrl-z'ed before commit.

was working for weight scheduling + regional conditioning, did not test attn masking

[ErwannMillon]

hm, doesn't seem to work with regional conditioning when trying to use weight scheduling on one ipa while the other has constant weight. Will check it out