[@bitloops/bl-boilerplate-core] Aggregates and Entities should support custom ids (not only uuidv4)

[danias]

The Aggregate and Entity parent classes needs to be replaced to support custom ids. Right now it requires a uuidv4.

[sardounis]

Seems there are two uuid classes UniqueEntityId and UUIDv4 - it seems that we could use only UniqueEntityId in the future since it creates a UUIDv4 only a unique Id is not provided