gpu: implement TextureView

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>

gpu/src/TextureView.zig

@@ -0,0 +1,21 @@
+const TextureView = @This();
+
+/// The type erased pointer to the TextureView implementation
+/// Equal to c.WGPUTextureView for NativeInstance.
+ptr: *anyopaque,
+vtable: *const VTable,
+
+pub const VTable = struct {
+    reference: fn (ptr: *anyopaque) void,
+    release: fn (ptr: *anyopaque) void,
+    // TODO:
+    // WGPU_EXPORT void wgpuTextureViewSetLabel(WGPUTextureView textureView, char const * label);
+};
+
+pub inline fn reference(texture_view: TextureView) void {
+    texture_view.vtable.reference(texture_view.ptr);
+}
+
+pub inline fn release(texture_view: TextureView) void {
+    texture_view.vtable.release(texture_view.ptr);
+}