[WIP]Adding image scraping

[ba11b0y]

Adds to #18
I know it is violating the do not repeat yourself(DRY) principle, as I am not clear how should I include this addition.
@ashwini0529 If you could tell me if this is fine or should I improve upon the structure.

[ashwini0529]

Included in requirements.txt?

[ba11b0y]

@ashwini0529 I have updated the requirements as well as the usage. Please let me know if any corrections are needed.
Also I was thinking of defining a function outside the scope of the scrape function, to eliminate repetition of the code for scraping images.
Since that would be a major change to the code style, your thoughts?

[ashwini0529]

Hey @invinciblycool I guess that would be better. 😄 Please go ahead with it! 🎉

[ba11b0y]

@ashwini0529 I accidentally squashed the wrong number of commits. What should I do now? 😟
Closing the PR can be a solution, but is there any way out without closing the PR.

[ba11b0y]

@ashwini0529 Then should I open a new PR, and close this.
Sorry again for the mess. 😟
I guess I need to go through squashing commits once again.

[ashwini0529]

Haha Alright! You could fix it in this PR but if you think that opening a new PR would be easy as of now, go ahead! 👍

[ba11b0y]

Done.
@ashwini0529 Intentionally kept the three commits instead of squashing them into one.