Minimap, Worldmap and waypoints reworked

An adaptive minimap and a full world map for Horizon, with a shared in-memory terrain cache.

• Minimap in four corners, square or round, 64–256 GUI pixels, 0.1–4 blocks per pixel, and optional player rotation.
• Player arrow on both maps shows the viewing direction and accounts for minimap rotation.
• English, Russian, French and Spanish interfaces follow the game language, including regional variants.
• World map opened by a rebindable key (M by default); drag to pan and scroll to zoom under the cursor, with eased camera motion.
• Independent dimension selection for the minimap and the world map (Player / Overworld / Nether / End), without teleporting the player.
• Hover shows the pointed-at coordinates, the localised biome and waypoint names; the hovered block is outlined.
• Right-click menu: copy coordinates, create a named waypoint, or teleport when the client knows the player has game-master permission.
• Separate waypoint manager (N by default) for creating, renaming and deleting waypoints; waypoints are drawn as first-letter markers on the HUD through walls and on both maps.
• Water and glass-family blocks are semi-transparent, water tint thickens with depth, grass-like ground cover is skipped, and flowers/crops use their real colours.
• Portals (Nether, End and End gateways) are marked and show their destination; Nether destinations prefer the nearest known portal, otherwise coordinate conversion.
• Overworld and Nether world borders are drawn on both maps (the Nether border is scaled to the same physical area).
• Relief shading crosses chunk borders; unknown terrain is transparent; the minimap renders at high resolution for smooth movement.
• Settings and named waypoints persist asynchronously in the mod data folder. Waypoints are isolated by save/server identity and dimension, with 64 points per world/server. Legacy unscoped points are deleted on upgrade; preferences are retained.
• Large-map terrain is drawn as GPU tiles; distant smoothing is enabled by default and can be disabled. No network requests are made by the mod.

The runtime uses only portable standard-library APIs and is intended for Linux, macOS and Windows. This release has not been reviewed in live gameplay; macOS and Windows runs remain unverified.