0.3.4

• added the ability to change the minecraft version by adding Project.version(changes mcmeta pack_format)
• added spawnegg check for CustomBlock
• added CustomBlock onPlaced and onBreak
• added a way to override TextComponents with null -> TextComponent(null)
• fixed issues with copying dicts
• fixed missing toString method for Item
• fixed missing implementation for Item.copyWith with model, name, hideFlags, lore and nbt
• fixed that fromJson and clone were not static
• fixed Execute.center targeting the corner of the block
• removed unnecessary collection package