First working version of point placement in hexagons.
Modifications for build without GDAL.
First working version of point placement in hexagons.
Add support for traversing single shape.
Don't resize the buffer for every chunk if its capacity is != the number of points to read per chunk (just make sure it is big enough. Allocate the size of the Writer's buffer to be the min(num_to_write, def_chunk_size) if num_to_write is not 0
getNumPoints caches the previous stage's point count if it is expected to forward it instead of asking the entire pipeline every time for the point count
Working hexbinning and outer path.
Add small build change.
Working hexbinning and traversal.

Conflicts:
	CMakeLists.txt
	apps/pshape/CMakeLists.txt
	apps/pshape/HexGrid.cpp
	apps/pshape/HexGrid.hpp
	apps/pshape/Hexagon.hpp
	apps/pshape/Point.hpp
	src/GlobalEnvironment.cpp
Add code to mark surrounded hexes.
Merge branch 'master' of github.com:PDAL/PDAL
fix up ifdef
first attempt to upgrade to boost 1.53
updates to import script
add new 1.53 boost libs
Merge remote-tracking branch 'main/issues/117-upgrade-boost-153'
Make path following work again.
whitespace normalization
add new soci writing example
Merge #117, upgrade embedded boost to 1.53 with unordered_map and
some others