IRoleClaimsStore implementation

• IRoleClaimsStore implementationc #7
• Fixed IUserLoginStore implementation

Upgrade to ASP.NET Core 3.1

• Migration of AspNetCore.Identity.Cassandra library to .NET Standard 2.1
• Migration of IdentitySample.Web application to .NET Core 3.1
• Fixed Update to dotnet core 3.1

Upgrade to ASP.NET Core 2.2

v2.2.0

package version update

2.0.1

• Nuget packages updates to fix exception when using nullable types in UDT

1.0.1

• Fixed application crash when a user does not have required rights to create a keyspace #2
• Changed target framework to .NET Standard 2.0 #1

1.0.0

v1.0.0

Updated assembly version