v1.0.0 of pixel_surface

Flutter GPU texture runtime — TextureRegistry bridge, CVPixelBuffer / SurfaceTexture upload, and GpuTextureView. No editor, filters, or beauty. Changelog excerpt: - Initial pub.dev release of pixel_surface— Flutter GPU texture bridge for native Rust pipelines and custom renderers. Renamed from rust_gpu_textureto a proper pub.dev package name. - GpuTextureRegistrystatic API: createTexture, updateTexture(RGBA), updateTextureBgra(BGRA — single memcpyon Apple, Bitmap.copyPixelsFromBufferon Android), presentPixelBuffer(zero-copy blit of VT decode buffer into IOSurface/Metal-compatible texture backing), decodePreviewToSurface(Android MediaCo[...]