Resource paths do not support Chinese character

[JiepengTan]

test project: https://github.com/realdream-ai/spx_demos/tree/main/11_Stickman

ERROR: Error opening file '../assets/sprites/Sprite3/é å1.svg'.
   at: load_image (core/io/image_loader.cpp:90)
Failed to load image: 7 ../assets/sprites/Sprite3/é å1.svg
can not find a texture: ../assets/sprites/Sprite3/é å1.svg
ERROR: Error opening file '../assets/sprites/Sprite3/é å3.svg'.
   at: load_image (core/io/image_loader.cpp:90)
Failed to load image: 7 ../assets/sprites/Sprite3/é å3.svg
can not find a texture: ../assets/sprites/Sprite3/é å3.svg
ERROR: Error opening file '../assets/sprites/Sprite3/é å2.svg'.
   at: load_image (core/io/image_loader.cpp:90)
Failed to load image: 7 ../assets/sprites/Sprite3/é å2.svg
can not find a texture: ../assets/sprites/Sprite3/é å2.svg
ERROR: Error opening file '../assets/sprites/Sprite3/é å1.svg'.
   at: load_image (core/io/image_loader.cpp:90)
Failed to load image: 7 ../assets/sprites/Sprite3/é å1.svg