Introduce max slippage in protocol #40
Description
Summary
Assert that a swap does not get executed beyond a certain delta from a recent price.
Motivation
If a client sets the wrong uint256 minimumAmountOut parameter in a swap call, the call can be MEV-arbitraged. To prevent the wrong parameter set at an interface level, we can accept a swap execution gas increase and add a check of maximum delta against an oracle price, say 9116 ticks (~2.5x oracle price) just as an example.
Specification
TBD.
Rationale
Improve safety.