* fixed bad hashing causing hashed project across two different blender sessions to appear different
aka, no more systematic re-export of everything when reloading a project in blender !
* fixed issues with modifier & material hashing that was also causing overly eager change detection
* previous_xxx_settings are now only saved AFTER a sucessfull export, for coherence
* added more fine grained setting change detection (aka some setting changes do not require a re-export of all levels & blueprints !)
* fixed handling of level & library scene names as part of the settings
* fixed numerous issues with core, auto_export & component settings
* cleaned up a ton of very verbose debug message
* BlenvyAssets => BlueprintAssets
* a lot of minor cleanups
* fixed overhauled, cleaned up and improved settings change detection
* serialize_scene now generate a hash per object instead of keeping the details (useless)
* changed handling of gltf settings, so that only the actual non default, changed settings are saved
* a ton of minor changes & cleanups to get export working correctly: it works !
* started adding materials_in_depth_scan (wip) to be able to control more detailed (but costly) materials diffing for change detection
* migrated gltf settings handling to the new "generate_complete_settings_dict" helper
* tweaks/fixed to the internals of that function to get the actual correct data
* minor related tweaks & fixes
* restructured component settings to be used instead of the registry
* removed settings from registry
* fixed data access for the above
* added saving of component parameters
* added component settings pointer in blenvy core
* added loading of both auto_export & component settings in blenvy core's load_settings
* removed a lot of obsolete code
* overhauled settings upsert
* added save & load of blenvy common settings
* removed most of the specific uis (mostly auto export)
* moved change detection logic out of auto export (wip)
* added helper to compare setting dicts
* cleaned up some incoherent naming
* stripped auto_export of a lot of its internals (wip)
* main settings ui overhaul: now components & auto export provide their own settings UI function
* improvements to assets ui
* assets ui now specific to per level data, not based on selection anymore
* blueprints ui now presents assets per blueprint
* a lot of tweaks & improvements in the areas above
