Create the cronjob that will scrape and update the firestore database with info

[JacobEkedahl]

Requirements

• Every 5 min, start a firebase function which scrapes https://www.worldometers.info/coronavirus/coronavirus-cases/ for number of death, cases, recovered for each country and updates firestore database according to #2 structure.

[tago-SE]

Here is a good site to scape from possibly: https://coronavirus.jhu.edu/map.html