Include ArborX_Version.hpp in ArborX.hpp

[aprokop]

It is expected that

#include <ArborX.hpp>

int main()
{
  std::cout << ArborX::version() << std::endl;
  return 0;
}

should work. Not including ArborX_Version.hpp into ArborX.hpp was an oversight.

[dalg24]

No strongly oppose
Pretty sure we had done that by design

[aprokop]

Pretty sure we had done that by design

Not sure what design you are talking about.

[aprokop]

@dalg24 rightfully pointed out that we modify the hash every time we rebuild. Meaning, that if we include the version file into ArborX.hpp, we'll rebuild everything everytime. Need to figure out whether it's possible to do the include only when we install.