【Hackathon 8th No.28】RFC：在 PaddleNLP 中复现 Phi3 模型

[robinbg]

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[DrownFish19]

1. 需注意实现_get_name_mappings方法用于转换参数，参考llama代码如下
   https://github.com/PaddlePaddle/PaddleNLP/blob/bfd053db0897943f5d4d116dde755dbf21d18b23/paddlenlp/transformers/llama/modeling.py#L1334-L1366
2. 需实现模型并行相关代码，可暂不实现sequence_parallel相关逻辑。if config.tensor_parallel_degree > 1:相关代码，参考llama代码如下（不仅一处位置，可检索后对应添加）：
   https://github.com/PaddlePaddle/PaddleNLP/blob/bfd053db0897943f5d4d116dde755dbf21d18b23/paddlenlp/transformers/llama/modeling.py#L775-L813
3. 建议优先完成单卡模型组网，后续再支持模型并行。

[DrownFish19]

LGTM