Added inmemory DB

Author: v-michaelmi

2-WebApp-graph-user/2-3-Multi-Tenant/WebApp-OpenIDConnect-DotNet.csproj

@@ -23,6 +23,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="6.0.3" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="6.0.3" />
     <PackageReference Include="Microsoft.Identity.Web.UI" Version="1.22.2" />
     <PackageReference Include="Microsoft.Identity.Web.MicrosoftGraph" Version="1.22.2" />