Change Log:

Remade blaze spawn egg.
Remade breeze spawn egg.
Added happy ghast spawn egg.
Adjusted gold nugget's PBR.
Adjusted iron nugget's PBR.
Added all boat's textures.
Adjusted smooth or polished stone block's smoothness.
Added dried ghast.
Added PBR texture of ghast.
Added happy ghast.
Added all harness.
Adjusted normal map on the side of all the glass pane.