make install issues

[jjaraalm]

Making binary installations with make install has some issues:

1. Public header files are not installed
2. If BUILD_INTERNAL_KOKKOS = ON then the installed compile script references locations in the source and build directories instead of their installed counterparts. (e.g., srcdir/kokkos/bin/nvcc_wrapper instead of installdir/bin/nvcc_wrapper)

[rfbird]

This is basically not intended to work right now, since no one has looked at it. Everyone this end runs it in place, so we've not spent any effort on it. I take it this means you actually do an install?

We had been waiting for the kokkos cmake changes, which have now happened, so now might make sense as a time to add this

[jjaraalm]

This is not a priority at all for me. I was trying to have multiple branches built using the same repo, but I'm fine with having multiple repos instead. I opened this to capture what I found, but feel free to kick it down the road.