feat: add grid material

thermion_dart/hook/build.dart

@@ -60,6 +60,7 @@ void main(List<String> args) async {
     sources.addAll([
       "${config.packageRoot.toFilePath()}/native/include/material/gizmo.c",
       "${config.packageRoot.toFilePath()}/native/include/material/image.c",
+      "${config.packageRoot.toFilePath()}/native/include/material/grid.c",
     ]);
 
     var libs = [
@@ -76,7 +77,6 @@ void main(List<String> args) async {
       "image",
       "imageio",
       "tinyexr",
-      "gltfio_core",
       "filaflat",
       "dracodec",
       "ibl",

thermion_dart/native/include/material/grid.S

@@ -0,0 +1,12 @@
+    .global GRID_GRID_OFFSET;
+    .global GRID_GRID_SIZE;
+
+    .global GRID_PACKAGE
+    .section .rodata
+GRID_PACKAGE:
+    .incbin "grid.bin"
+GRID_GRID_OFFSET:
+    .int 0
+GRID_GRID_SIZE:
+    .int 30210
+

thermion_dart/native/include/material/grid.apple.S

@@ -0,0 +1,12 @@
+    .global _GRID_GRID_OFFSET;
+    .global _GRID_GRID_SIZE;
+
+    .global _GRID_PACKAGE
+    .section __TEXT,__const
+_GRID_PACKAGE:
+    .incbin "grid.bin"
+_GRID_GRID_OFFSET:
+    .int 0
+_GRID_GRID_SIZE:
+    .int 30210
+

thermion_dart/native/include/material/grid.h

@@ -0,0 +1,13 @@
+#ifndef GRID_H_
+#define GRID_H_
+
+#include <stdint.h>
+
+extern "C" {
+    extern const uint8_t GRID_PACKAGE[];
+    extern int GRID_GRID_OFFSET;
+    extern int GRID_GRID_SIZE;
+}
+#define GRID_GRID_DATA (GRID_PACKAGE + GRID_GRID_OFFSET)
+
+#endif