refactor sounds like textures/materials (#24)

src/sounds/farlands_reloaded.lua

@@ -0,0 +1,65 @@
+local sound_api = {}
+
+function sound_api.node_sound_default(soundtable)
+    return soundtable
+end
+
+function sound_api.node_sound_stone_defaults(soundtable)
+    return fl_stone.sounds.stone(soundtable)
+end
+
+function sound_api.node_sound_dirt_defaults(soundtable)
+    return fl_topsoil.sounds.grass(soundtable)
+end
+
+--return dirt as some games use dirt vs grass
+function sound_api.node_sound_grass_defaults(soundtable)
+    return sound_api.node_sound_dirt_defaults(soundtable)
+end
+
+function sound_api.node_sound_sand_defaults(soundtable)
+    return fl_stone.sounds.sand(soundtable)
+end
+
+function sound_api.node_sound_gravel_defaults(soundtable)
+    return fl_topsoil.sounds.gravel(soundtable)
+end
+
+function sound_api.node_sound_wood_defaults(soundtable)
+    return fl_trees.sounds.wood(soundtable)
+end
+
+function sound_api.node_sound_leaves_defaults(soundtable)
+    return soundtable
+end
+
+function sound_api.node_sound_glass_defaults(soundtable)
+    return soundtable
+end
+
+
+function sound_api.node_sound_ice_defaults(soundtable)
+    return soundtable
+end
+
+function sound_api.node_sound_metal_defaults(soundtable)
+    return soundtable
+end
+
+function sound_api.node_sound_water_defaults(soundtable)
+    return soundtable
+end
+
+function sound_api.node_sound_lava_defaults(soundtable)
+    return soundtable
+end
+
+function sound_api.node_sound_snow_defaults(soundtable)
+    return fl_topsoil.sounds.snow(soundtable)
+end
+
+function sound_api.node_sound_wool_defaults(soundtable)
+    return soundtable
+end
+
+return sound_api