More informative function names

[ayushpatnaikgit]

Changing

1. bias_correction to PSTT_biascorrect as the function is part of the PSTT paper
2. Similarly, conventional_cleaning to `PSTT_conventional()
3. And PatnaikSTT2021 to PSTT2021, which is more concise.

Adding a function clean_complete which is best full cleaning method as of today.

[codecov-commenter]

Codecov Report

Merging #31 (f87a0c3) into main (8ffc24b) will increase coverage by 0.37%.
The diff coverage is 75.00%.

@@            Coverage Diff             @@
##             main      #31      +/-   ##
==========================================
+ Coverage   74.96%   75.33%   +0.37%     
==========================================
  Files          23       23              
  Lines         667      669       +2     
==========================================
+ Hits          500      504       +4     
+ Misses        167      165       -2     

Impacted Files	Coverage Δ
src/data_cleaning/full_procedures.jl	95.23% <60.00%> (-4.77%)	⬇️
src/data_cleaning/bias_correction.jl	97.14% <100.00%> (ø)
src/data_cleaning/interpolation.jl	92.30% <0.00%> (+15.38%)	⬆️

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