Add gunpowder trails

game_api.txt

mods/tnt/init.lua

mods/tnt/textures/tnt_gunpowder.png

mods/tnt/textures/tnt_gunpowder_burning.png

mods/tnt/textures/tnt_gunpowder_burning_animated.png

.../tnt/textures/tnt_gunpowder_burning_crossing_animated.png

mods/tnt/textures/tnt_gunpowder_burning_curved_animated.png

.../tnt/textures/tnt_gunpowder_burning_straight_animated.png

...nt/textures/tnt_gunpowder_burning_t_junction_animated.png

mods/tnt/textures/tnt_gunpowder_crossing.png

mods/tnt/textures/tnt_gunpowder_curved.png

mods/tnt/textures/tnt_gunpowder_straight.png

mods/tnt/textures/tnt_gunpowder_t_junction.png