Force India is not shown as 2 teams in the 2018 standings

[jolpica]

On the official F1 website, the constructor standings are as follows:

7 	Force India Mercedes 	52
...
EX 	Force India Sahara 	0

https://www.formula1.com/en/results.html/2018/team.html

This is due to the bankruptcy, then buyout of the team under a new entry. However the ergast data has this as one single continuous team, so as a result our standings data does not include this.

To fix:

• Split force india teams into 2
• Decide if the two force india teams should have the same "base team", as they are technically new entries.