Recently `gpu_shader_3D_smooth_color_frag.glsl` had the uniform declarations removed.
For shaders without `ShaderCreateInfo` that require this source this results in the error:
```
ERROR (gpu.shader): hair_refine_shader_transform_feedback_workaround_create FragShader:
|
54 | fragColor = finalColor;
|
| gpu_shader_3D_smooth_color_frag.glsl:5:0: Error: Use of undeclared identifier 'fragColor'
| gpu_shader_3D_smooth_color_frag.glsl:5:0: Error: Use of undeclared identifier 'finalColor'
|
55 | fragColor = blender_srgb_to_framebuffer_space(fragColor);
|
| gpu_shader_3D_smooth_color_frag.glsl:6:0: Error: Use of undeclared identifier 'fragColor'
| gpu_shader_3D_smooth_color_frag.glsl:6:0: Error: Use of undeclared identifier 'fragColor'
```
So port that shader to use `ShaderCreateInfo`.
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