added front end and updated files

mysite/plots/avl_tree.py

mysite/plots/dataset_creator.py

mysite/plots/packing_algo.py

mysite/plots/plot_helpers.py

mysite/plots/polygon.py

mysite/plots/polygon_creator.py

mysite/plots/templates/plots/index0.html

mysite/plots/templates/plots/index_new.html

mysite/plots/templates/plots/tab.html

mysite/plots/templates/plots/test.html

mysite/plots/urls.py

mysite/plots/views.py

mysite/requirements/base.txt