Add DSA Module

[xingmingyyj]

Add DSA Module

[codecov-commenter]

Codecov Report

❌ Patch coverage is 94.08602% with 22 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (develop@2d1e373). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
src/paddlefleet/transformer/dsa_attention.py	94.39%	11 Missing and 9 partials ⚠️
src/paddlefleet/models/gpt/gpt_layer_specs.py	33.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             develop     #683   +/-   ##
==========================================
  Coverage           ?   94.08%           
==========================================
  Files              ?        4           
  Lines              ?      372           
  Branches           ?       37           
==========================================
  Hits               ?      350           
  Misses             ?       13           
  Partials           ?        9           

Flag	Coverage Δ
coverage_combine	94.08% <94.08%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
.../paddlefleet/transformer/multi_latent_attention.py	100.00% <100.00%> (ø)
src/paddlefleet/transformer/transformer_config.py	100.00% <100.00%> (ø)
src/paddlefleet/models/gpt/gpt_layer_specs.py	33.33% <33.33%> (ø)
src/paddlefleet/transformer/dsa_attention.py	94.39% <94.39%> (ø)

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[changeyoung98]

LGTM