model-debug-analysis

[TsLu]

新增模型网络可视化数据分析后端逻辑代码

[CLAassistant]

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2 out of 3 committers have signed the CLA.

:white_check_mark: nepeplwu
:white_check_mark: TsLu
:x: lutingshu

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[nepeplwu]

建议新增一个visualdl/thirdparty的目录，将此PR中visualdl/utils、visualdl/reader、visualdl/server等目录下新增的代码都放在该目录中，方便管理

[nepeplwu]

建议将paddle的framework.proto原文件也放一份在visualdl/proto中，并说清楚来源

[nepeplwu]

命令行如何使用该功能？

[nepeplwu]

缺少功能说明文档