Add partial and not fully tested support for raster indexing from the QuadIndex.
replace GDAL-based NITF reader with a Nitro-based one
replace GDAL-based NITF reader with a Nitro-based one
missed a GDAL->NITRO ifdef
Merge branch 'master' of https://github.com/PDAL/PDAL into indexing
NITF test now depends on WITH_NITRO, not WITH_GDAL #477
Merge pull request #477 from PDAL/nitro-reader3

PR to add mpg's drivers.nitf.reader rework
add fvisibility-inlines-hidden when compiling with PCL support
Merge pull request #479 from chambbj/issues/478-bus-error

add fvisibility-inlines-hidden when compiling with PCL support
Tweak rastering index.
Merge branch 'master' into indexing