create nice inference examples

[romeokienzler]

Some nice inference config files have been requested by Campbell Watson

[kaushikCanada]

yes please . especially the tiled inference and how it works. i want to do tiled inference on my landsat imagery. for example dealing with boundary artifacts and nodata values. some examples on how to use clay models would also be great.
for the segmentation model output im getting 3x256x256 output for my 3 calsses. do i manually do the argmax afterwards or is there some option . what is the best practice please.