TU43 Structures, bug fixes & minor changes

- Elytra flight, damage, kinetic energy, pretty much any bug someone reported, paper doll, etc.
- Fossil & Igloo generation
- Texture interpolation
- Iggy mouse fix for world settings
- Neo branding on main screen
- Release build txt logger
- Debug mode spectator
- Several server fixes
- Flowerpot fixes
- Several more changes made in TU43

Minecraft.World/HugeMushroomFeature.cpp

@@ -19,6 +19,7 @@ bool HugeMushroomFeature::place(Level *level, Random *random, int x, int y, int
 	if (forcedType >= 0) type = forcedType;
 
 	int treeHeight = random->nextInt(3) + 4;
+	if (random->nextBoolean()) treeHeight *= 2;
 
 	bool free = true;
 	if (y < 1 || y + treeHeight + 1 >= Level::maxBuildHeight) return false;