rigaya/NVEnc 3.27 on GitHub

Add color tweak filter (vpp-tweak) which can adjust brightness, contrast, gamma, saturation and hue. ( #26 ) -> usage
Fix issue that the output bitrate was shown as half when using --vpp-deinterlace bob.
Fix issue that vpp-delogo was not working correct.
Add high bit depth support for Avisynth+ ( #25 ). Note that this only supports native high bit depth, and does not support so called "high bit depth hack".