presets: Add Production presets for use with professional video editing software.

presets: Add Production presets for use with professional video editing software.

Production Max and Production Standard are high bit rate, short GOP (I/P), constant frame rate presets suitable for use as intermediate formats for video editing.

Production Proxy 1080p and Production Proxy 540p are high bit rate, Intra-only (I), constant frame rate presets suitable for use as low resolution proxy formats for video editing. The Proxy presets correspond to one-quarter (1/4) 2160p 4K Ultra HD and one-quarter (1/4) 1080p Full HD resolutions, respectively.