Compositor: New Nodes from Geometry Nodes

As highlighted during the 2025 Blender Conference, one of the primary challenges facing the Compositor is managing complexity. To address this, the goal of this proposal is to make it as accessible as possible by porting over familiar nodes from Geometry Nodes. This project aims to: - Develop a future-proof classification between the two modules. - Port matrix & math utility nodes into the Compositor: Matrix SVD, Bit Math, Boolean Math, Integer Math, Compare, Float To Int, Hash Value, and Random Value. - Extend GPUType to include boolean, integer and integer vector types. - Ensure UI and behavior consistency between ported nodes and existing ones, including full support for the GPU Compositor. - Implement regression testing for all newly ported nodes. - Document the rationale behind node selection, implementation and functionality in the new context.