LoadProjectSettings changed to take place after the board
has been loaded so that board-specific project settings can
be applied (such as net visibility and color overrides)
Removes the TTL triangulator in favor of the delaunator triangulator.
This removes the only AGPL code in the KiCad codebase and therefore
allows the full project to be licensed under the GPLv3.
Instead of iterating over full set, use sweep line algorithm to limit
the number of nodes needed to be searched. This improves the speed of
the dynamic ratsnest.