Portal with RTX - Update Notes

[b]Release Notes:[/b] [list] [*] Added NVIDIA DLSS 3.5 with Ray Reconstruction [*] Added NVIDIA RTX IO support [*] Update dxvk-remix to 0.4 [*] Added POM materials [*] Fixed content issues [*] Optimized CPU perf [*] New “secret” cubes [*] Numerous bug fixes and overall improvements to stability [/list] [b]Source Engine: [/b] [list] [*] Updated gameinfo text to allow for main menu logo [*] Added gamelogo.res to account for main menu logo parameters [*] Added new portal_rtx.vmt and .vtf to show main menu logo [*] Added new background image (one variant for widescreen, one variant for non-widescreen) for ordinary background map [*] Added new background image (one variant for widescreen, one variant for non-widescreen) for cake background map [*] Added new new game icons for all main game levels [*] Added new icons for all advanced chambers [*] Added new icons for all challenge chambers [*] Added DX7 hack for fire to allow for some effects to render in places they originally did not [*] Added modified fire particle without smoke to remove flickering in the firepit [/list] [b]RTX Assets:[/b] [list] [*] Removed skydome model (replaced with a null model to prevent errors from loading) [*] Improved treeline textures & added a normal map [*] Improved skybox textures in surface-side sequence [*] Fixed IQ issues on the clipboard texture [*] Added heightmaps to the three variants of metal plate wall [*] Added replacement meshes for one/two dot door variants [*] Added replacement mesh for the broken pipe [*] Added a lip to emancipation grids to make them flush with the wall [/list]