Add Blas Concepts

[yasahi-hpc]

This PR introduces concepts from KokkosBlas traits which are planed to be used in KokkosBatched.
Currently, we only have the following concepts.
Similar concepts should be defined for KokkosBatched

template <typename T>
concept TransposeOperation = is_trans_v<T>;

template <typename T>
concept BlasLevel2 = is_level2_v<T>;

template <typename T>
concept BlasLevel3 = is_level3_v<T>;

[lucbv]

It looks good overall but I think at least one more test to exemplify how this will work in practice would be nice : )

[lucbv]

Can we add a test where we actually use the concept, i.e. create a dummy class/struct with a requirement close and observe that it goes well?

[yasahi-hpc]

I added a dummy functor to explain the typical use case in mind