smallhive

Remove contracts autodeploy from repo

1

Closes #2811.

[Related issue](https://github.com/nspcc-dev/neofs-contract/issues/394)

Check the account alongside the public key

2

Refs https://github.com/nspcc-dev/neofs-api/issues/278

Add backward response for N3 account verification

2

## Is your feature request related to a problem? Please describe. Using N3 accounts gives a powerful tool. But in case of `VerifySignature` fails (return false), the Node doesn't return...