Use currency to upgrade bases

Event mechanics guide:
https://www.youtube.com/watch?v=4MeNNbW2Qhs

Currently only simulating by pulling first card and resetting, other pull methods will be available later (but reward difference between first pull and pull to SR methods are negligible so doesn't change much)

I didn't set a target for dice usage as there's no obvious target like Summer Rabbits event, so it just uses all the dice randomly at the end for this reward calculation. That means the expected income will be slightly different depending on which reward you decide to target