Merge branch 'feature/gemm_summa' into 'master'

compute/pzgemm.c

compute/pzhemm.c

compute/pzsymm.c

control/context.c

control/descriptor.c

control/descriptor.h

include/chameleon/constants.h

include/chameleon/struct.h

runtime/starpu/control/runtime_context.c

runtime/starpu/control/runtime_profiling.c

testing/testing_dgram.c

timing/CMakeLists.txt

timing/time_zhemm_tile.c

timing/time_zsymm_tile.c

timing/timing_zauxiliary.c

timing/timing_zauxiliary.h