TraceSource tracing statements are here + FakeProvider fixes.

- New ITraceManager and trace related classes.
- Started to add various levels of TraceSouce Error/Warning/Information/Verbose messages to help developers diagnose errors.
- FakeProviders now can be auto wired with a (new) specific .config attribute. Closes #63.
Merge branch 'Tracing' of https://github.com/PureKrome/WorldDomination.Web.Authentication into Tracing