Revert "Project modernization (#630)"

This code was not tested and breaks in Release builds, reverting to restore
functionality of the nightly. All in-game menus do not work and generating
a world crashes.

This reverts commit a9be52c41a.

Minecraft.World/FarmTile.cpp

@@ -8,8 +8,8 @@
 
 FarmTile::FarmTile(int id) : Tile(id, Material::dirt,isSolidRender())
 {
-	iconWet = nullptr;
-	iconDry = nullptr;
+	iconWet = NULL;
+	iconDry = NULL;
 
 	setTicking(true);
 	updateDefaultShape();