Add AuthSamples repo (#659)

.gitmodules

@@ -2,6 +2,10 @@
 	path = modules/Antiforgery
 	url = https://github.com/aspnet/Antiforgery.git
 	branch = dev
+[submodule "modules/AuthSamples"]
+	path = modules/AuthSamples
+	url = https://github.com/aspnet/AuthSamples.git
+	branch = dev
 [submodule "modules/AzureIntegration"]
 	path = modules/AzureIntegration
 	url = https://github.com/aspnet/AzureIntegration.git

build/submodules.props

@@ -7,6 +7,7 @@
 
   <ItemGroup>
     <Repository Include="Antiforgery" />
+    <Repository Include="AuthSamples" />
     <Repository Include="AzureIntegration" />
     <Repository Include="BasicMiddleware" />
     <Repository Include="BrowserLink" />

modules/AuthSamples

@@ -0,0 +1 @@
+Subproject commit 6e75c8eb76fea1adfd9b1cd0946a8d1543292ad9