Created Deque Implementation.js

[RohitVishwakarma8840]

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• Fix a bug or typo in an existing algorithm?
• Documentation change?

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• This pull request is all my own work -- I have not plagiarized.
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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 96 lines in your changes missing coverage. Please review.

Project coverage is 84.35%. Comparing base (55ff0ad) to head (cbc1abf).

Files with missing lines	Patch %	Lines
Deque/Deque Implementation.js	0.00%	96 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1760      +/-   ##
==========================================
- Coverage   84.76%   84.35%   -0.42%     
==========================================
  Files         378      379       +1     
  Lines       19738    19834      +96     
  Branches     2957     2958       +1     
==========================================
  Hits        16731    16731              
- Misses       3007     3103      +96     

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[appgurueu]

Duplicates our existing doubly linked list: https://github.com/TheAlgorithms/JavaScript/blob/master/Data-Structures/Linked-List/DoublyLinkedList.js.