Batched - team interface instantiation and testing on serial and openmp

[kyungjoo-kim]

@ambrad

1. Fix the "namespace Team"
2. Add unit test for team interface (team size is auto)

[ambrad]

@kyungjoo-kim, I'll look at this tomorrow.

[kyungjoo-kim]

Please hold this a bit. I just figured out how to test sandia machines using kokkoskernels script. I already see some warning error.

[ambrad]

@kyungjoo-kim, am I correct that this patch does these 3 things: (i) rationalize namespace and struct names, (ii) reformat code extensively (the primary cause of the large patch?), (iii) add unit tests? If (ii) is correct, then I understand why this commit is so large. If not, I want to understand better what has changed.

I brought these changes into Trilinos and tested with BlockTriDiContainer on CPU and P100, and all is well.

[kyungjoo-kim]

@ambrad
(i) yes right
(ii) yes it reformats some type names
(iii) adding unit tests for team
(iv) also remove all warning when I compile it with cuda.

@crtrott
I also fix some pointless warnings 085d574. related to #65