Tested compilers in jenkins

Created by: Rombur

I have tried to find all the compilers we would want to use in Jenkins. We probably just want to test a subset of the list

Compiler	Serial	OpenMP	CUDA	OpenMP/CUDA
Clang-CUDA: clang 7 + cuda 9.2			X
NVCC: 10.1 gcc 7.4				X
GCC: 5.4 (oldest compiler with C++14 support)	X
GCC: 9.1 (latest compiler)	X
Intel 2019		X
XL (need access to Power)				X
PGI: 19.4				X