No error message is logged if the game cannot load the texture for a map icon

Relates to MC-299056, MC-299057 and MC-299162.

If the game is unable to load the texture for a map decoration, there will be no error in the game log to indicate this. This is inconsistent with blocks/items and particles, which correctly do report such an error.

A resource pack is attached to this ticket that unloads the budding amethyst, enchanted hit and player marker textures. The first two will use the missing texture and report an issue in the game log. The third will use the missing texture, but report no such error.