Samples: `DEMO_001_SolarSystem` is now bilingual (GLSL + Slang) #1482

Job	Run time
cmake-test-ubuntu (Ubuntu - Clang, ubuntu-latest, Debug, clang-16, clang++-16, Unix Makefiles)	4m 13s
cmake-build-macos (macOS - Clang (Xcode), macos-latest, Debug, clang, clang++, Xcode, -DLVK_WITH_...	2m 55s
Android (Ubuntu)	6m 30s
cmake-build (Ubuntu - Clang (Wayland), ubuntu-latest, Debug, clang-16, clang++-16, Unix Makefiles...	3m 30s
cmake-build (Windows - MSVC 2022 (glslang), windows-latest, Debug, cl, cl, Visual Studio 17 2022,...	4m 17s
cmake-build (Ubuntu - Clang, ubuntu-latest, Debug, clang-16, clang++-16, Unix Makefiles)	3m 18s
	24m 43s

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