Add histogram output for each tile

[NastyaNekr]

When using tiling, it can be very useful to be able to export the histograms with directions and its percentage as a table with one row per tile.
StartAngle1; EndAngle1 StartAngle2;EndAngle2 ..............................StartAngle(Nbins);EndAngle(Nbins)
tile ID(1) Length; Number Percentage Length; Number Percentage ......................Length; Number Percentage
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tile ID(N tiles) Length; Number Percentage Length; Number Percentage ......................Length; Number Percentage