Create cdc.py

[vaishnavi-vinodh]

Pull request recommendations:

• Name your pull request {your development type}: {short description}. Ex: Feature: flocculator validation
• Link to any relevant issue in the PR description. Ex: Resolves #12, adds flocculator validation
• Provide context of changes.
• Provide relevant tests for your feature or bug fix.
• Provide or update documentation for any feature added by your pull request.

Thanks for contributing!

[codecov[bot]]

Codecov Report

Merging #305 (16bc60b) into master (bd228de) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #305   +/-   ##
=======================================
  Coverage   89.56%   89.56%           
=======================================
  Files          29       29           
  Lines        3047     3047           
=======================================
  Hits         2729     2729           
  Misses        318      318           

Impacted Files	Coverage Δ
aguaclara/design/cdc.py	96.07% <ø> (ø)

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