Fix the TODO in TargetFrameworkProjectConfigurationDimensionProvider to read TargetFrameworks from an MSBuild evaluation at the unconfigured project level

[mavasani]

Currently we are working around this by reading the MSBuild project file XML, but we probably need to read the property via an evaluation.

[mavasani]

@lifengl for assistance - I am not sure if this is even possible. Can we read properties from an MSBuild evaluation at unconfigured project level? Currently, our dimension provider just reads the project xml for TargetFrameworks property.

[mavasani]

I am closing this out - I don't think this is needed, if at all possible.

[mavasani]

Re-activating this issue, as unless this is fixed, we cannot support cases where TargetFramework or TargetFrameworks needs an evaluation to get the correct property value.