Update OpenIddict.Tests.csproj to add a net47 target
Update OpenIddict.Tests.csproj to add a net47 target

openiddict/openiddict-core,vyfster/openiddict-core,openiddict/openiddict-core,openiddict/core,openiddict/openiddict-core,openiddict/openiddict-core,vyfster/openiddict-core,openiddict/core,openiddict/openiddict-core