[AutoParallel] Refactor qwen2 model in intermediate api

[waliwali777]

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PR types

Function optimization

PR changes

Models

Description

在重构 trainer （ #2801 ）的基础上对 llama 3.1 模型组网接口进行优化
组网统一使用 modeling.py，移除 modeling_network.py 和 modeling_auto.py
该 PR 逻辑如下：

1. 用户在脚本中开启中层api动半时：

enable_auto_parallel true
use_intermediate_api true

2. 在 PretrainedConfig 中引入开关 run_single_model，当跑中层api动半时，该开关会被设为开启，并会关闭其他并行配置(将 sharding_parallel_degree、tensor_parallel_degree、sep_parallel_degree、context_parallel_degree 设为1)，通过 run_single_model 对 modeling 组网进行 hack，让 modeling.py 在运行时是在单卡代码模式下，避免跑到动手通信的地方

3. 添加 pretrain 文件，这里会读取运行脚本中的 TrainingArguments、构建 训练数据 和 Trainer，并调用 trainer.train 进行训练。这里当检测到 开启中层api 时，会将 run_single_model 设为 True，并关闭其他并行配置

4. 在 modeling.py 添加中层api配置。新增文件 auto_dist_config.py，这是中层 api 的配置文件，记录每层在不同并行下的切分状态。给 Qwen2ForCausalLM 添加函数 auto_dist_config ，这个函数会在 trainer 初始化时去读取这个配置，并初始化中层api的环境

[paddle-bot]

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 38.88889% with 11 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (develop@3d9d3d2). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...ddleformers/transformers/qwen2/auto_dist_config.py	33.33%	4 Missing ⚠️
paddleformers/transformers/configuration_utils.py	40.00%	3 Missing ⚠️
paddleformers/transformers/qwen2/modeling.py	50.00%	2 Missing ⚠️
...addleformers/transformers/tensor_parallel_utils.py	33.33%	2 Missing ⚠️

❌ Your patch status has failed because the patch coverage (38.88%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
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  Coverage           ?   31.31%           
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  Files              ?      421           
  Lines              ?    68601           
  Branches           ?        0           
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  Hits               ?    21481           
  Misses             ?    47120           
  Partials           ?        0           

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