[DEV] Implementation of Hash Table Data Structure

[miladsade96]

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Describe your change:

• [x] Adding a data structure called hash table

[miladsade96]

@raklaptudirm OK

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 80.95238% with 20 lines in your changes are missing coverage. Please review.

Project coverage is 83.88%. Comparing base (8734dfc) to head (d05deeb). Report is 2 commits behind head on master.

Files	Patch %	Lines
Data-Structures/HashTable/HashTable.js	80.95%	20 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1627 +/- ## ========================================== + Coverage 83.66% 83.88% +0.21% ========================================== Files 377 378 +1 Lines 19733 19841 +108 Branches 2907 2933 +26 ========================================== + Hits 16509 16643 +134 + Misses 3224 3198 -26 ```

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