[GEOT-4951] Add support for Tile width/Height in GridCoverage2DRIA class
GeoPackage: Spatial Index reading
Geopackage: Spatial Indexing in Gp Process
GeoPackage: add file and class headers
Geopackage: create index on tiles
[GEOT-4957] NPE in Attribution parsing
Merge pull request #641 from n-lagomarsini/GEOT-4957

[GEOT-4957] NPE in Attribution parsing
Merge pull request #638 from NielsCharlier/geopkg_tileindex

Geopackage: create index on tiles
Merge pull request #637 from NielsCharlier/geopkg_index

Geopkg: Spatial Indexing
Merge pull request #636 from NielsCharlier/geopkg_headers

GeoPackage: add file and class headers
Using TopologyPreservingSimplifier instead of DouglasPeuckerSimplifier when simplifying footprints
Merge pull request #618 from n-lagomarsini/GEOT-4951

[GEOT-4951] Add support for Tile width/Height in GridCoverage2DRIA class