feature(cy): add tensor stream merging tools

[Cloud-Pku]

Description

Some tools for merging tensor streams

Related Issue

TODO

Check List

• [ √] merge the latest version source branch/repo, and resolve all the conflicts
• [ √] pass style check
• [ √] pass all the tests

[codecov]

Codecov Report

Merging #673 (e0522c9) into main (ebae45b) will decrease coverage by 0.50%.
The diff coverage is 46.98%.

❗ Current head e0522c9 differs from pull request most recent head a617df7. Consider uploading reports for the commit a617df7 to get more accurate results

@@            Coverage Diff             @@
##             main     #673      +/-   ##
==========================================
- Coverage   82.57%   82.08%   -0.50%     
==========================================
  Files         584      588       +4     
  Lines       47811    47630     -181     
==========================================
- Hits        39478    39095     -383     
- Misses       8333     8535     +202     

Flag	Coverage Δ
unittests	82.08% <46.98%> (-0.50%)	⬇️

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

Impacted Files	Coverage Δ
ding/framework/middleware/functional/logger.py	23.05% <14.28%> (-1.15%)	⬇️
ding/policy/bcq.py	22.58% <22.58%> (ø)
ding/model/template/bcq.py	25.37% <25.37%> (ø)
ding/utils/compression_helper.py	62.85% <28.57%> (-9.08%)	⬇️
ding/utils/lock_helper.py	85.71% <28.57%> (-7.27%)	⬇️
ding/utils/data/dataset.py	50.00% <46.15%> (-2.56%)	⬇️
ding/reward_model/pdeil_irl_model.py	83.33% <60.00%> (-2.99%)	⬇️
ding/world_model/ddppo.py	74.47% <60.00%> (-0.91%)	⬇️
ding/rl_utils/merge.py	84.44% <84.44%> (ø)
ding/model/template/__init__.py	100.00% <100.00%> (ø)
... and 5 more

... and 221 files with indirect coverage changes