B1520A: CVSweepMeasurement class works with all impedance models

[lakhotiaharshit]

Earlier driver supported only Cp_D (Capacitance, Dissipation) impedance model. This was hardcoded in the driver. This PR removes these constraints and supports all possible impedance models.

@astafan8 @jenshnielsen

[codecov]

Codecov Report

Merging #2047 into master will increase coverage by 0.07%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #2047      +/-   ##
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+ Coverage   71.34%   71.41%   +0.07%     
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  Files         149      149              
  Lines       19939    19985      +46     
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+ Hits        14226    14273      +47     
+ Misses       5713     5712       -1     

[astafan8]

Looks great! one question - does the output of the "capacitance" parameter also change with the change of the impedance model? if so, shall we also update the label/unit of that parameter upon model change? or we just restrict that parameter to the Cp_D model and do the enhancement in another PR? (i think i like the latter for now)

[lakhotiaharshit]

Looks great! one question - does the output of the "capacitance" parameter also change with the change of the impedance model? if so, shall we also update the label/unit of that parameter upon model change? or we just restrict that parameter to the Cp_D model and do the enhancement in another PR? (i think i like the latter for now)

I think this is not the part of this PR. Even before this PR user can change the impedance model and get the capacitance; capacitance parameter was not restrained to Cp_D. I think this whole problem should be fixed in a separate PR.