Denis Rybas

Feature: add revert reason to receipt

1

Changes: - Added optional `revert_reason` String to receipt Reasoning: `revert(...)`, as described in [Solidity docs](https://docs.soliditylang.org/en/latest/control-structures.html#revert), can return a revert reason as an ABI-encoded string. Some Ethereum clients already have this...

**Scope:** - Unit tests from all modules - Two goals: - check test coverage - refactoring/simplification **Details:** - make sure Unit Tests coverage is enough - simplify the unit tests...

Added new `DiscoveryCapabilitiesBitmask` field to model