Update SITI filter to match with latest specification.

This proposal aims to update the SITI video filter within FFmpeg to align with the latest ITU-T P.910 specification. The current implementation suffers from outdated methodologies and lacks support for High Dynamic Range (HDR) images, leading to limitations in image quality assessment. Our solution involves updating the methodology and algorithms to conform to the 07/22 revision of ITU-T P.910, implementing HDR support, and ensuring compliance with updated SITI specifications. Key Deliverables: 1)Updated video filter conforming to the latest ITU-T P.910 specification, including SI and TI metrics from the 07/22 revision. 2)Enhanced filter functionality supporting HDR image processing. 3)Comprehensive documentation detailing implementation changes, usage guidelines, and technical specifications. If selected for GSoC, this project will significantly improve the accuracy and relevance of the SITI filter in modern multimedia processing pipelines, benefiting users and developers working with FFmpeg.