Add support for Data objects

[nishtahir]

This PR adds support for Data Objects
https://kotlinlang.org/docs/object-declarations.html#data-objects

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (f254759) 68.40% compared to head (f8de14b) 68.40%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #75   +/-   ##
=======================================
  Coverage   68.40%   68.40%           
=======================================
  Files          13       13           
  Lines         500      500           
=======================================
  Hits          342      342           
  Misses        158      158           

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[nishtahir]

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