Add Count Number of Connected Components in Graph

[hardik-dadhich]

Hi, Thanks for this Awesome Repo
Description :
Can we Add Algorithm to find Number of Connected components in Graph in Algorithm/graph section?
please Let me know if there is a possibility of this.

[ericklarac]

@hardik-dadhich nice contribution. Feel free to add more algorithms on this repo.

[hardik-dadhich]

@ericklarac, Sure!