Add Activity Type: Water Polo

[FreyaM]

I keep having to put swimming when I train water polo, however it’s entirely inaccurate as water polo is more strenuous as a whole so would probably benefit from its own activity type 

[Scout]

​​Thanks for submitting your idea. It has been reviewed by our team and is now open to voting.

[tbendis]

This would be huge, it's a big part of exercise for me, and I'd love to be able to track it