Use tiled to transfer live results between reconstruction and viewer.

[zr-gao]

Currently, the live reconstruction results are saved as npy files into disk and loaded by the recon viewer for display.

holoscan-framework/Holoptycho/ptycho_holo.py

Lines 239 to 243 in a7ca3ec

	np.save('/data/users/Holoscan/prb_live.npy',results[0])
	np.save('/data/users/Holoscan/obj_live.npy',results[1])
	with open('/data/users/Holoscan/iteration','w') as f:
	f.write('%d\n'%results[2])
	scan_num = results[3] # For future use

https://github.com/NSLS2/ptycho_gui/blob/78f1e6a46b9e8ccdd91182ccf6a0a8c2132cef66/src/nsls2ptycho/recon_viewer.py#L20-L21

These should be replaced with using tiled. Only catch here is that the live result files will be repeatedly overwritten when new data comes. We want to keep only the last generated result for each scan_num.

[zr-gao]

@genematx @danielballan @skarakuzu