CreateDBConnection creates a connection with the DB using the `heavy` driver.

NewDatabase create or open backend storage (goleveldb) located at the specified path.

CandidatePrefix is the prefix to identify Candidate messages.

DriverName is the unique identifier for the heavy driver.

HeaderPrefix is the prefix to identify the Header.

HeightPrefix is the prefix to identify the Height.

PersistedPrefix is the prefix to identify the hash of the latest blockchain persisted block.

TipPrefix is the prefix to identify the hash of the latest blockchain block.

TxIDPrefix is the prefix to identify the Transaction ID.

TxPrefix is the prefix to identify Transactions.

DB on top of underlying storage syndtr/goleveldb/leveldb.