Added PDB files to NuGet
Added overridable BeforeRequest and AfterRequest methods to FhirClient (e.g. for use with authorization)
Produce a clearer error message when encountering two properties with the same name while doing reflection. Closes #27.
Made the default implementation of the Before/After request virtual methods call new event properties, so you can both subclass or use the event props
Merge branch 'ft-client-request-hooks'