🌲 Realistic Wood Cutter - Become the best lumberjack

BUG FIXES

1. Fixed the permission check of the vehicle setup tool
2. Fixed the permission check of the configuration tool
3. Fixed a possible double sale of wood at the NPC

AFFECTED FILES

1. lua/entities/realistic_woodcutter_npc/init.lua
2. lua/weapons/gmod_tool/stools/realistic_woodcutter_setupvehicle.lua
3. lua/weapons/gmod_tool/stools/realistic_woodcutter_tools.lua