Match PCL style guide for the Eclipse formatter
Merge pull request #692 from VictorLamoine/eclipse_formater

Match template PCL style guide for the Eclipse formatter
Reduce computation time for bilateral upsampling.

Compute the distance values (exponential functions) in advance to reduce computation time.
Add: approximate version of the progressive morphological filter

This version is closer to the original paper and significantly faster,
computing the morphological operations on a 2D grid.
Merge pull request #665 from chambbj/approx-pmf

Add: approximate version of the progressive morphological filter
Merge pull request #689 from aikkala/bilateral_upsampling_fast

Reduce the computation time needed for bilateral upsampling