Themed panorama for The Update that Changed the World

Adds themed panorama for Adventure Update (1.0) like all those panoramas Mojang does for modern versions (from 1.13). The panorama features newly added roofed forest, mesa and savanna biomes. Also you can check out [panoramas for all other updates from 1.0 to 1.12](https://modrinth.com/collection/TsDFWRow).