@0x/contracts-exchange-libs
denominator. `@0x/contracts-exchange-libs`: `LibMath` tests from `@0x/contracts-exchange` into this package. `@0x/contracts-exchange-libs`: Adjust logic in reference functions to be closer to solidity implementation.
@0x/types
FillResults
MatchedFillResults
`BatchMatchedFillResults` types. `@0x/contracts-utils`: Add reference functions for `SafeMath`. `@0x/contracts-exchange-libs`: Add reference functions for `LibMath` and `LibFillResults`. `@0x/contracts-test-utils`: Move `*FillResults` types to `@0x/types`. `@0x/contracts-test-utils`: Add `log_utils.ts`. `@0x/contracts-test-utils`: Add `hexRandom()` to `hex_utils.ts`. `@0x/contracts-test-utils`: Add the contstants: `MAX_UINT256`, `ADDRESS_LENGTH`.