* Add OpenIddict management module. * Add an identity server that uses OpenIddict. * Add the identity server API that uses OpenIddict. * LINGYUN.Abp.IdentityServer.WeChat module renamed LINGYUN.Abp.Authentication.WeChat. * LINGYUN.Abp.IdentityServer.QQ module renamed LINGYUN.Abp.Authentication.QQ. * Update Directory.Build.props. * Update common.props.