removed explicit Promise declaration from gulpfile

Added Maze creation example

I saw that there isn’t anything on disjoint sets or mazes under the
examples so I implemented the process of making a maze.

I have visualized a maze creation before
(https://github.com/nadr0/Maze). I have always been a fan of
visualizing data structures or algorithms and I though this was the
perfect chance!

My code is rather large but it gets the job done.

I

Implemented counting sort

Fullscreen

css needs to be fixed when enters fullscreen

Minor Refactoring

hid spinners for number input in firefox

Search Bar

Side menu category animation