[Feature]: Add the issue, bug, Pull request and feature template for contributors

[praptisharma28]

This will help the maintainer keep the track of all the contributors.

[praptisharma28]

Assign me @tushar5526 under iwoc

[tushar5526]

Go ahead!

[praptisharma28]

@tushar5526 put the iwoc tag too, also I need to add 7-8 files for this. I believe a better difficulty level tag is deserve. Thanks:)

[tushar5526]

HI @praptisharma28 - I think easy is quite suitable for it. There are other issues with higher difficulty that you can contribute to and learn as well.

[praptisharma28]

@tushar5526 please check, thanks.

[praptisharma28]

@tushar5526 the program ends today, please merge it.