Adding new BinaryFile namespace for Rock project. Stubbing out file storage MEF components.
Stubbing out component API and associated providers.
Merge branch 'develop' into feature-jo-fileprovider
More work on storage components, adding migration to include StorageEntityType on BinaryFileType.
Updating components to include a GetUrl method. Adding StorageEntityType to BinaryFile model.
Adding BinaryFileTypeGuid property to FileUploader control.
Attempting to add some UI to administer file storage providers on file types.
More work on file provider. Fixing bug in AttributeValue Value getter and setter that was causing a NullReferenceException.
Merging develop
Adding more to migration to wire up entity attributes on components, default values, etc.