developpement d'écran de chargement et d'écran de sélection de niveau

* modification de certains assets
* optimisation de chunks
* ajout d'un SceneManager
* ajout d'un premier dialogue avec Demeter
* changement des jour en charge
* mise en place d'un système de run
* etc...

dialogs/characters/mysterious_demeter.dch

@@ -0,0 +1,40 @@
+{
+"@path": "res://addons/dialogic/Resources/character.gd",
+"@subpath": NodePath(""),
+&"_translation_id": "1e",
+&"color": Color(1, 1, 1, 1),
+&"custom_info": {
+"prefix": "",
+"sound_mood_default": "",
+"sound_moods": {},
+"style": "",
+"suffix": ""
+},
+&"default_portrait": "Mysterious Portrait",
+&"description": "",
+&"display_name": "???",
+&"mirror": false,
+&"nicknames": [""],
+&"offset": Vector2(0, 0),
+&"portraits": {
+"Mysterious Portrait": {
+"export_overrides": {
+"image": "\"res://dialogs/characters/portraits/mysterious_demeter.png\""
+},
+"mirror": false,
+"offset": Vector2(0, 0),
+"scale": 1,
+"scene": ""
+},
+"New portrait": {
+"export_overrides": {
+"image": ""
+},
+"mirror": false,
+"offset": Vector2(0, 0),
+"scale": 1,
+"scene": ""
+}
+},
+&"scale": 1.0
+}

dialogs/characters/mysterious_demeter.dch.uid

@@ -0,0 +1 @@
+uid://c2i2hyfbt1eeo

dialogs/characters/portraits/mysterious_demeter.png.import

@@ -0,0 +1,40 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://bc00ga286t0kk"
+path="res://.godot/imported/mysterious_demeter.png-66b658b484342d6f6e3402cb3d55b756.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://dialogs/characters/portraits/mysterious_demeter.png"
+dest_files=["res://.godot/imported/mysterious_demeter.png-66b658b484342d6f6e3402cb3d55b756.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1