Migrate kaldi resample accuracy and size tests

[bhargavkathivarapu]

This PR migrates the below tests (#597 ) from test/test_compliance_kaldi.py to test/kaldi_compatibility_impl.py

I am migrating all minor tests in this PR, which are not dependent on other files for arguments .

• resample accuracy
• resample size
• mfcc empty input check

[codecov]

Codecov Report

Merging #699 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #699   +/-   ##
=======================================
  Coverage   89.09%   89.09%           
=======================================
  Files          22       22           
  Lines        2338     2338           
=======================================
  Hits         2083     2083           
  Misses        255      255           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 2416e5d...3599ef5. Read the comment docs.

[mthrok]

Hi @bhargavkathivarapu

Thanks for working on this.
Let me get back to this later as, unlike the other tests we've migrated, Kaldi does not provide a simple CLI for this.
I have to study the code and come up with the right approach. I feel the existing tests require improvements.

Note:
Kaldi's implementation is found here, and the corresponding test is found here and here

[mthrok]

We have replaced the resample module in 0.9 release and Kaldi's resample code is no longer the reference point.
Closing the issue. Thanks @bhargavkathivarapu and sorry for the unfruitful collaboration here. Please feel free to pick up an any help-wanted task in the future. Now the team behind torchaudio has grown, we should be able to better respond.