Add a storage access trait implementation that would allow `U60F18` be used in contract storage. See here for other existing implementations: https://github.com/starkware-libs/cairo/blob/main/corelib/src/starknet/storage_access.cairo.
Add a storage access trait implementation that would allow
U60F18be used in contract storage.See here for other existing implementations: https://github.com/starkware-libs/cairo/blob/main/corelib/src/starknet/storage_access.cairo.