Add msvq and imsvq

[takenori-y]

No description provided.

[codecov]

Codecov Report

Merging #20 (91177eb) into master (dc794f4) will increase coverage by 0.03%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #20      +/-   ##
==========================================
+ Coverage   99.72%   99.75%   +0.03%     
==========================================
  Files         140      144       +4     
  Lines        3265     3328      +63     
==========================================
+ Hits         3256     3320      +64     
+ Misses          9        8       -1     

Flag	Coverage Δ
unittests	99.75% <100.00%> (+0.03%)	⬆️

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Impacted Files	Coverage Δ
diffsptk/core/__init__.py	100.00% <100.00%> (ø)
diffsptk/core/imsvq.py	100.00% <100.00%> (ø)
diffsptk/core/msvq.py	100.00% <100.00%> (ø)
diffsptk/core/vq.py	100.00% <100.00%> (+4.34%)	⬆️
tests/test_imsvq.py	100.00% <100.00%> (ø)
tests/test_ivq.py	100.00% <100.00%> (ø)
tests/test_msvq.py	100.00% <100.00%> (ø)

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