fixed leb128 integer decoding

src/rendering/gltf.zig

@@ -1,3 +1,16 @@
 const std = @import("std");
 const mesh = @import("mesh.zig");
 const Allocator = std.mem.Allocator;
+
+pub const Model = packed struct {
+    const Chunk = packed struct {
+        length: u32,
+        ty: u32,
+
+    },
+    header: packed struct {
+        magic: u32,
+        version: u32,
+        length: u32,
+    },
+};