exa2pro/starpu-max: porting work to Maxeler DFE @ cc1cb2f7097379677e20ae09a8078ec8218fd3d4

Samuel Thibault 22a5b5d3d7 Follow-up with r6233: make complex_copy_methods non-const		14 lat temu
..
complex.c	d6fd124ae4 Check the return value of starpu_opencl_unload_opencl().	14 lat temu
complex_interface.c	22a5b5d3d7 Follow-up with r6233: make complex_copy_methods non-const	14 lat temu
complex_interface.h	1bc571e77a add a example on how to define a new data interface	14 lat temu
complex_kernels.cl	2912649808 Make examples/interface/complex work with OpenCL.	14 lat temu
complex_kernels.cu	1bc571e77a add a example on how to define a new data interface	14 lat temu
complex_kernels_opencl.c	e6bea2930e examples/interface/complex_kernels_opencl.c: fix bugs	14 lat temu