Add Air Quality Index

[vibalijoshi]

Context

Adding Air Quality Index is essential part of weather reporting websites.

Solution

We can display the Air Quality Index of the selected location on the website, using the Open Weather API https://openweathermap.org/api/air-pollution

[vibalijoshi]

Hey @marcnjaramillo, Please assign this issue to me (@vibalijoshi ) and my teammate @DasithEdirisinghe

[marcnjaramillo]

You've been assigned!