FlatGeobuf: fix reading of conformant single-part MultiLineString (OS…

Merge remote-tracking branch 'upstream/master'

Change transform to std::array.

Potentially working with SD plane.

Merge branch 'OSGeo:master' into master

Cleanup.

Viewshed: add comment about cumulative test.

Merge remote-tracking branch 'upstream/master' into cumulative

Viewshed: change test criteria.

Merge remote-tracking branch 'upstream/master'

Viewshed: debug.

Viewshed: debug

Viewshed: test location.

Debug.

Viewshed: fix overrun.

Viewshed: add cumulative mode test.

Viewshed: remove dead function declaration.

Viewshed: doxy updates.

Viewshed: typo.

Add support for user-specified job numbers in cumulative mode.

Viewshed: copyright and comments.

Viewshed: re-enable progress.

Viewshed: add comments & eliminate copy from mem dataset.

Viewshed: fix filename references.

Address review comments.

Viewshed: add documentation for cumulative mode.

Viewshed: add missing header.