The distance between fields in structs is hardcoded. This could lead to mistakes with future maintenance of the code.
This distance can also be calculated.
Context: BasicOrderFulfiller.sol#L118-L128
The function _validateAndFulfillBasicOrder() has a hardcoded value of FiveWords to calculate the distance between the location of
considerationToken and the offerToken in the struct BasicOrderParameters.
Calculate the distance between considerationToken and the offerToken and use that instead of FiveWords:
Note: this suggestion could also be used for the assignment of conduitKey.
See BasicOrderFulfiller.sol#L165-L170 and BasicOrderFulfiller.sol#L1026-L1033
