Public Extension Method GetFrameworkName is misleading

[CharliePoole]

I fixed a bug in TestCentric.Extensibility due to incorrect use of the extension method GetFrameworkName in CecilExtensions.cs. That method merely returns the value of the assembly's TargetFrameworkAttribtue, which is not always present.

However, it was being used on the assumption that it always returned the TargetFramework for which the assembly had been built. Determining that would require some additional steps and involves a few assumptions, making it an unsuitable library API.

After thinking it over, I believe this API should be removed. The assumptions and necessary steps can be incorporated in the individual applications that use TestCentric.Metadata. In fact, that's how I resolved the bug in TestCentric.Extensibility.