Added paraphrase.py with contractions

[abheesht17]

I have added the contractions part, both for expanded phrase-->contraction and contraction-->expanded words.

In the future, to improve this, we can implement PoS tagging, because right now, it will not be grammatically correct for certain contractions.

[rajaswa]

@abheesht17 use black formatting for all the python code for a succesul build

[codecov[bot]]

Codecov Report

Merging #50 into master will increase coverage by 0.21%. The diff coverage is 91.89%.

@@            Coverage Diff             @@
##           master      #50      +/-   ##
==========================================
+ Coverage   90.90%   91.12%   +0.21%     
==========================================
  Files           5        6       +1     
  Lines         132      169      +37     
==========================================
+ Hits          120      154      +34     
- Misses         12       15       +3     

Impacted Files	Coverage Δ
decepticonlp/transforms/paraphrase.py	91.89% <91.89%> (ø)

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[abheesht17]

Done, @rajaswa

[someshsingh22]

You can reduce the code and make it easier to understand by passing all regex into a list and looping around them.

contractions=[(r"'ve"," have"), (r"n't", " not") ......]
for contraction in contractions:
    re.sub(contraction[0], contraction[1], text .... )

This way it will be easier to add other regexes in future

[abheesht17]

Cool, I'll do that, @someshsingh22.

[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!

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