added keybind

alt=debug grids

limitted the scope of activation hotkey to avoid conflict with other mods.

faster and more precise junction bridges.

fix for Uninitalized netool.

added pedestrian bridge over road.

bridges over middle nodes

bug fix for bridge over roundabouts built by roundabout builder

fixed index out of range. more preceise paths.

toogle tool functionality. better handling of invalid hover/ray