Currently CurveCryptoPool.get_dy does not handle 3 coins, only 2. Update the implementation in a clean manner to handle this. Similar test as for 2 coins should work. Reference implementation is the Tricrypto-NG vyper fixture.
Actually #148 doesn't need get_dy, it needs get_y, which is implemented now. Also, i think probably the price scale needs to be used to make sure the axis range is correct.
Currently
CurveCryptoPool.get_dy
does not handle 3 coins, only 2. Update the implementation in a clean manner to handle this. Similar test as for 2 coins should work. Reference implementation is the Tricrypto-NG vyper fixture.