Update L-signals to use the `speed_limit` tagging to align with main/distant signal tagging.

Update all main/distant signals with integrated speed limits (Zuid-Holland)

Update all main/distant signals with integrated speed limits (Utrecht)

Update all main/distant signals with integrated speed limits (Amsterdam)

Update all main/distant signals with integrated speed limits (Noord-Holland)

Update all main/distant signals with integrated speed limits (Brabant)

Update all main/distant signals with integrated speed limits (Zeeland)

Update all main/distant signals with integrated speed limits (Limburg)

Update all main/distant signals with integrated speed limits (Gelderland)

Update all main/distant signals with integrated speed limits (Flevoland)

Update all main/distant signals with integrated speed limits (Overijssel)

Update all main/distant signals with integrated speed limits (Drenthe)

Update all main/distant signals with integrated speed limits (Friesland)

Update all main/distant signals with integrated speed limits (Groningen)

Update all main/distant signals with integrated speed limits (south of The Netherlands)

Update all main/distant signals with integrated speed limits (Holland & Utrecht)

Update all main/distant signals with integrated speed limits (east of The Netherlands)

Update all main/distant signals with integrated speed limits (north of The Netherlands)

Railway signals with separate or combined speed limits. Merge nodes and update tagging.

Start work on railway signals with separate/combined speed limits. Merge nodes and update tagging.