v1.6.8-beta6

• Complete rewrite of the texture loading and shaders management
• Loading of diffuse, decals, roughness and metallness map (not in all converted shaders)
• New texture panel with preview and download on doubleclick
• Compacted preferences
• Tweakpane new configurations
• Command compatible with Wolvenkit.CLI 8.14.x
• Manual export command in the model panel
• DDS and PNG behave similarly
• Increased performance in loading models and textures
• Log of minor bug fixing and removed a lot of dead code
• Better error handling
• Version change log file