* added basic support for cmake (#127)
* renamed Winter Drop version from MC_1_21_3 to MC_1_21_WD
* updated world spawn location for 1.21.2 (cubiomes-viewer #340)
* tweaked mc version to text conversion (#128)
* removed properties field in structure config and added dimension field instead
* moved biome tree selection back to biomenoise.c as it's slightly faster and avoids globals
* added pale_garden biome with 1.21.3 (version TBA)
* added small end islands and better end surface generation (#117)
* added linked end gateway finder (#117)
* fixed inaccurate End generation at large distances from 0,0
* fixed incorrect biome in outer end rings
* fixed incorrect biome area size (#122)
* much faster surface height generation for the end dimension
* added 1.21 to versions
* added trial chambers
* renamed trail_ruin to trail_ruins to match its id string
expanded support for structure variants
added end city pieces generation (WIP)
added outer end voids (MC-159283)
fixed several issues with the availablity of biomes for layered generation
fixed that about half of 1.18/1.19 end gateways have wrong positions
1) fixed biome exclusion filter no longer working for 1.17-
2) fixed ruined portal variations
3) separted quad base code with threading and filesystem dependencies into its own source file
1) Updated readme for 1.18 API.
2) Nether biomes should be 2D and keep the legacy noise in 1.18.
3) Added wrapper for checkForBiomes() with the new generator.
Different versions, dimensions and variations are now bundled into a single Generator structure.
Areas (x,z,w,h) are largely replaced with a Range structure that supports 3D cuboids with scaling.
The scale now acts as a generalization that replaces layer access. Direct layer access will
have to be version specific, using the LayerStack.
(I.e. this update will unfortunately break much of the API.)
1) suitable biomes for fortresses and bastions were swapped
2) renamed very generic getConfig to getStructureConfig
3) added potential way of overriding structure configs
1) renamed layer enums and functions to somewhat resemble the current mappings
2) replaced biome tables with a canBiomeGenerate() function
3) fixed stronghold biome list
