Missing Adventurers Bricks, Desert+Jungle 1998/1999

[Zack Uhlenhuth]

LDraw is missing several 2x2 heiroglyph tiles from Desert:
* Khnum: rebrickable.com/parts/3068bpr9957/tile-2-x-2-with-orange-map-and-hieroglyphs-khnum-head-20-print/
* Anubis:  https://rebrickable.com/parts/3068bpr040...-40-print/
* Thoth: https://rebrickable.com/parts/3068bpr042...-60-print/
* Horus: https://rebrickable.com/parts/3068bpr037...-80-print/
* https://rebrickable.com/parts/3754pr0007...ird-print/
* https://rebrickable.com/parts/3754pr0008...fig-print/
(could be more)

Jungle
* Achu Sun Disk: https://rebrickable.com/parts/71940/sun-...ifig-head/
* Jungle print: https://rebrickable.com/parts/2454apr000...gle-print/