A milestone release! We finally have tile entities and chests!

Changes:

• allow tallgrass to grow on dirt, so that it won't disappear during the night
• regular brown coal ores drop more lumps than dirt ones. You can't notice that right now, as there are no pickaxes yet
• added an option to partially align the camera to the mouse position, like in Paper Minecraft. It looks good when moving, but bad when moving windows. If you want, disable it in the settings menu
• item entities have now sizes relative to block size
• fix entities going out of the world crashing the game
• made the terrain more bumpy, to make space for water in the future
• cobblestone is now affected by gravity. Noticed that in the BetterThanWolves Minecraft mod and decided to add it to Dim
• added chests and tile entities