Feature/core api refactor

[jpeffer]

fix: Corrected failing integration unit tests, which exposed a defect in the handling of dot notation data provider properties. Previously, these properties were case-sensitive and the unit tests were failing.

feat: Introduction of core Faker interface and BaseFaker implementation, which is intended to support the decoupling of data providers, while still providing a means to shim the existing Faker API.

feat: Added seed constructors to the existing Faker implementation.

refactor: Modified existing data providers to require a net.datafaker.core.Faker implementation.