Unit Sprites, Icons and units that needs fixing

[GeneralWadaling]

• The unique cavalries of Arroyo and Ghost Mountain does not have their sprite
• NewStar Campaign Tank don't have a sprite, and also NOT having a proper icon
• Carrier still using vanilla sprite
• Heavy carrier sprite needs a new one
• Drop Troops lamely uses my assault infantry sprite, needs a PROPER design goddammit
• Exo trooper is ugly and needs some redesign
• Great Mad Scientist sprite is mf a doodle that needs PROPER redesign
• The fucking bozo who use "Hovercraft" being the upgrade for attack helicopter? Rename it!
• The sprites for various lines of foot units are messed up which the sprite does not show a proper and logical evolutionary sequence
• NewStar scout car lacking a sprite
• Barbarian units lacking sprite, including Junker, Sandrail
• Tree Lover not having a sprite