Updated hydrographic layer samples for API changes
Merge branch 'v.next' of https://github.com/Esri/arcgis-runtime-samples-dotnet into v.next

Conflicts:
	src/Desktop/ArcGISRuntimeSDKDotNet_DesktopSamples/Assets/SampleDescriptions.xml
	src/Desktop/ArcGISRuntimeSDKDotNet_DesktopSamples/Samples/NetworkAnalystTasks/RoutingWithBarriers.xaml.cs