Patch: Update on data manger and data modules

[skim0119]

Note

• Add signal-to-noise ratio function
• Add validity check on Data module
• Update DataManager
• Bugfix: fft, signal filter, binary to volt conversion, unit conversion

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (update-0.0.3@0d5e3f3). Click here to learn what that means.
The diff coverage is n/a.

@@               Coverage Diff               @@
##             update-0.0.3      #28   +/-   ##
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  Coverage                ?   50.00%           
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  Files                   ?       19           
  Lines                   ?      540           
  Branches                ?       58           
===============================================
  Hits                    ?      270           
  Misses                  ?      269           
  Partials                ?        1           

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