complete api of graphs implemented in javascript

[AliSinaDevelo]

Greetings, Firstly thank you for the amazing content and videos, I have made an implementation of the graph class in JS, implementing the following:

• adding and removing edges and vertexes to the graph
• depth first search
• breadth first search
• connected, cyclic, weighted, simple, complete, direct and indirect graphs
• checking if the graph has a loop or a path I am submitting this pull request including the aforementioned implementation thank you