remote_value library Null safety

Classes

HiveBlopStore<T>
Create box for each blopName, and store single value at 0 index with hive serialization
PersistentBlopStore<T>
store abstraction used on PersistentBlop
PersistentValueBlop<T>
RemoteModel<T>
RemoteValueBlop<T>
RemoteValueBlopBase<T>
base class to use in generics