Add path tiling utilities (#1594)

Introduce the iterator types used to traverse and slice a
GeoCoordinates sequence to tiles:
* Add TilingIterator to convert the GeoCoordinates to a TileKeys
* Add AdjacentPairIterator to iterate over the adjacent pairs
* Add LineSliceIterator type to slice the path from point A to point B
* Add various helper functions to ease the iterators creation
* Add a Bresenham's line algorithm used to generate tiles over a grid

Relates-To: OCMAM-461

Signed-off-by: Mykhailo Kuchma <ext-mykhailo.kuchma@here.com>

Author: mykhailo-kuchma

olp-cpp-sdk-core/CMakeLists.txt

@@ -197,6 +197,7 @@ set(OLP_SDK_GEOTILING_HEADERS
     ./include/olp/core/geo/tiling/HalfQuadTreeSubdivisionScheme.h
     ./include/olp/core/geo/tiling/ISubdivisionScheme.h
     ./include/olp/core/geo/tiling/ITilingScheme.h
+    ./include/olp/core/geo/tiling/PathTiling.h
     ./include/olp/core/geo/tiling/QuadTreeSubdivisionScheme.h
     ./include/olp/core/geo/tiling/SubTiles.h
     ./include/olp/core/geo/tiling/TileKey.h