dpdata driver <--> ase calculator

[njzjz]

This commit adds the ability to convert between dpdata driver and ase calculator.

• add a dpdata driver called ASEDriver
• add a ASE calculator called DPDataCalculator

[codecov-commenter]

Codecov Report

Merging #302 (31dfbaa) into devel (31552db) will increase coverage by 0.11%.
The diff coverage is 93.87%.

@@            Coverage Diff             @@
##            devel     #302      +/-   ##
==========================================
+ Coverage   81.56%   81.67%   +0.11%     
==========================================
  Files          62       63       +1     
  Lines        5257     5305      +48     
==========================================
+ Hits         4288     4333      +45     
- Misses        969      972       +3     

Impacted Files	Coverage Δ
dpdata/driver.py	86.36% <85.71%> (-0.48%)	⬇️
dpdata/ase_calculator.py	92.59% <92.59%> (ø)
dpdata/plugins/ase.py	74.32% <100.00%> (+6.52%)	⬆️

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