work on profiling LUT & CSR on GPU
Added CSR stuff

Apparently the splitBBoxCSR is not giving yet correct results... I'll
look into this asap
profile_csr_padded to see the kernels work
profile_csr_padded_csr to see the kernels fail
Merge remote branch 'giannis/master'

Conflicts:
	openCL/ocl_azim_CSR.cl
	pyFAI-src/ocl_azim_csr.py
	pyFAI-src/ocl_azim_lut.py
	src/splitBBoxCSR.pyx
remove this test ... only for debugging
Mar133 and mar165 are equivalent to rayonix equivalent ...
add mask for round CCD detectors