Fuzz test calculate_* trades against solidity

[slundqui]

There are limited tests for rust calculate_* functions against what's implemented in solidity:

• Open long/short doesn't fuzz against solidity.
• Close long/short only fuzzes the underlying calculate_close_long_flat_plus_curve and calculate_close_short_flat_plus_curve against the calculate_close_* from hyperdrive math. However, these functions do not take fees or negative interest checks into account (both on the solidity and rust side).

Ideally, we would fuzz these trades against the public interface of hyperdrive.

[dpaiton]

Duplicate of delvtech/hyperdrive-rs#20; closing