Highcharts stock/1 live data tools

[MarkusBarstad]

A few notes regarding this exercise:

• I was unsure how you wanted me to add the custom buttons, they are in the menu like any other and have no custom svg
• Instead of legit stock-data I have used live data from the International Space Station, just as a way to have live data
• I am also unsure if using "init" for these buttons are ok, i saw a post on stackoverflow claiming so, but my mousepad "doesnt like it" so much and i have to click a few times to make stuff happen. I wanted to avoid listeners outside of highcharts, but maybe there is other stuff in the navigator i could have used?