[video_core] Better error messages (#2827)

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2827
Reviewed-by: Maufeat <sahyno1996@gmail.com>
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Co-authored-by: MaranBr <maranbr@outlook.com>
Co-committed-by: MaranBr <maranbr@outlook.com>

src/video_core/shader_environment.cpp

@@ -59,7 +59,7 @@ static Shader::TextureType ConvertTextureType(const Tegra::Texture::TICEntry& en
     case Tegra::Texture::TextureType::TextureCubeArray:
         return Shader::TextureType::ColorArrayCube;
     default:
-        UNIMPLEMENTED();
+        LOG_ERROR(Shader, "Invalid texture_type={}, falling back to texture_type={}", static_cast<int>(entry.texture_type.Value()), Shader::TextureType::Color2D);
         return Shader::TextureType::Color2D;
     }
 }