Add new paper SPIDepth

[Lavreniuk]

@choyingw, thank you for the great work of compiling SOTA depth papers. Could you please update the list with a recent paper that should be added to both the High Performance and Self-Supervised Depth Estimation sections?

• SPIdepth: Strengthened Pose Information for Self-supervised Monocular Depth Estimation, arxiv 2024 | github

[Lavreniuk]

Hi, @dongzhuoyao , @choyingw , previously I have asked if you could add one more SOTA paper. Please update the list.