Declare function return type
Remove unnecessary comments
Replace geometry running direction with geometry direction enumeration
Rename split link id
Rename function
Extract split length calculation to dedicated function
Extract split results to dedicated function
Move speed limit split creation to geometry utilities
Move geometry utilities to digiroad2-geo project
Import enumerations to cleanup `LinkChain` code
Merge pull request #333 from finnishtransportagency/split_speed_limits_on_links_with_varying_geometry_running_order

Split speed limits on links with varying geometry running order
Display all speed limit geometries regardless of underlying road link type
Provide the geometry running direction of speed limit link from backend
Fix speed limit cutting in front end
Reactivate speed limit splitting