add PrecipitationRenderer (WIP)

src/graphics/render/WorldRenderer.hpp

@@ -18,6 +18,7 @@ class LineBatch;
 class ChunksRenderer;
 class ParticlesRenderer;
 class BlockWrapsRenderer;
+class PrecipitationRenderer;
 class GuidesRenderer;
 class TextsRenderer;
 class Shader;
@@ -71,6 +72,7 @@ public:
     std::unique_ptr<TextsRenderer> texts;
     std::unique_ptr<ParticlesRenderer> particles;
     std::unique_ptr<BlockWrapsRenderer> blockWraps;
+    std::unique_ptr<PrecipitationRenderer> precipitation;
 
     static bool showChunkBorders;
     static bool showEntitiesDebug;