add cli

[njzjz]

No description provided.

[codecov-commenter]

Codecov Report

Merging #265 (dae232e) into devel (53c1af0) will decrease coverage by 0.42%.
The diff coverage is 3.57%.

@@            Coverage Diff             @@
##            devel     #265      +/-   ##
==========================================
- Coverage   82.06%   81.64%   -0.43%     
==========================================
  Files          60       61       +1     
  Lines        5153     5181      +28     
==========================================
+ Hits         4229     4230       +1     
- Misses        924      951      +27     

Impacted Files	Coverage Δ
dpdata/cli.py	0.00% <0.00%> (ø)
dpdata/system.py	79.96% <50.00%> (-0.10%)	⬇️

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