Added dianna block
Dianna protobuf file updated, more convinient naming
Strong refactoring done
Transaction serialization and tests are implemented
refactoring
Signature implemented
Intermediate commit
Renamaed to dianna client and server
Temporary commit
Code refactoring
Intermediate commit
Json serializer implemented
Cryptographical tests are implemented
Refactoring, serializations for keys, hashes, and dates are implemented
Added aux data, some ui classes