Refactored SpecAttribute using foreach statement.
Refactored the GetCustomizationMethod method.
Introduced InjectAttribute.
Implemented base inject feature.
Implemented the inject feature for a parameter

from DataAttribute.
Refactored SpecAttribute - extracting classes.
Renamed the names of the parameters.
Asserssed more informative exception message.
Added the pragma to suppress the R# warnings.
Refactored InjectAttribute

 - introducing the static field.
Refactored InjectAttribute.
Implemented parameter named injection.
Removed InjectTestType<T>

and introduced Parameter<T> instead.
Changed the namespace of SpecimenBuilderExtensions

from Jwc.AutoFixture.Xunit to Jwc.AutoFixture.
Made SpecimenBuilderExtensions public.
Added the test case.
Renamed the test names and modified some codes.
Refactored SpecAttribute.
Refactored SpecAttribute and InjectAttribute.
Refactored SpecAttribute.