l.s.l.t.fake : module documentation

Fake, in-process implementation of the Librarian API.

This works in-process only. It does not support exchange of files between processes, or URL access. Nor will it completely support all details of the Librarian interface. But where it's enough, this provides a simple and fast alternative to the full Librarian in unit tests.

Class	InstrumentedLibraryFileAlias	A ILibraryFileAlias implementation that fakes library access.
Class	FakeLibrarian	A test double Librarian which works in-process.