change sequence_bias type of SequenceBiasLogitsProcessor to list, add… (#33375)
* change sequence_bias type of SequenceBiasLogitsProcessor tp list, add config tests for all processors
* fix format
* small fix for all_token_bias_pairs_are_valid internal func
* small typo fix in description
* improve test impl, some SequenceBiasLogitsProcessor refactoring