UK Improved Signage 1.28

This mod aims to replace UK road signs in ETS2 with more realistic versions.

** CHANGES CAUSED BY THIS MOD **
- Corrected UK 30mph signs
- Replaced all 60mph signs with 'National Speed Limit' signs
- Replaced the UK 'No Waiting' sign with no U-Turns (the no waiting sign is hardly ever used in the UK, yellow kerb lines are used instead)
- Replaced all other UK street signs and dangerous bend chevrons with more accurate versions
- UK Speed cameras are now yellow on all sides
- Replaced UK roadworks speed signs with clearer more accurate versions
- Replaced all UK city entrance signs
- New UK gas station 'price boards'
- Replaced UK border 'drive on left' and speed conversion signs
- Replaced all UK 'small road navigation' signs (arrow direction signs not on motorways)