chore: 初始化Godot项目基础配置文件

添加了.editorconfig、.gitignore、.gitattributes配置文件，创建项目主配置和项目图标文件

project.godot

@@ -0,0 +1,25 @@
+; Engine configuration file.
+; It's best edited using the editor UI and not directly,
+; since the parameters that go here are not all obvious.
+;
+; Format:
+;   [section] ; section goes between []
+;   param=value ; assign values to parameters
+
+config_version=5
+
+[application]
+
+config/name="LosingMind"
+config/features=PackedStringArray("4.6", "GL Compatibility")
+config/icon="res://icon.svg"
+
+[physics]
+
+3d/physics_engine="Jolt Physics"
+
+[rendering]
+
+rendering_device/driver.windows="d3d12"
+renderer/rendering_method="gl_compatibility"
+renderer/rendering_method.mobile="gl_compatibility"