Hashtable.py

[huzaifarehman1]

Description

completed implementation of hashtable from scratch
#464

Checklist:

• My code follows the style guidelines of this project i.e. Pep8
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• Any dependent changes have been merged and published in downstream modules
• I have squashed unnecessary commits

[huzaifarehman1]

complete hashtable implimentation