[pdal-commits] [PDAL/PDAL] 7a1e7b: Initial implemenation of UpdateReturns filter

[chambbj]

  Branch: refs/heads/issue-2675
  Home:   https://github.com/PDAL/PDAL
  Commit: 7a1e7b958dd1bc1494dd15947fed835dfe9935d7
      https://github.com/PDAL/PDAL/commit/7a1e7b958dd1bc1494dd15947fed835dfe9935d7
  Author: Bradley J Chambers <brad.chambers at gmail.com>
  Date:   2019-09-06 (Fri, 06 Sep 2019)

  Changed paths:
    A filters/UpdateReturns.cpp
    A filters/UpdateReturns.hpp

  Log Message:
  -----------
  Initial implemenation of UpdateReturns filter

Brute force implementation to demonstrate the approach. When noise is present
in a point cloud, it may be worthwhile to update ReturnNumber and
NumberOfReturns for the pulse containing the noise. The proposed update
strategy is documented in #2675.