FastNoise2: Add simd support for Android

[beicause]

Tested on arm64 Android phone, Neon works.
Not yet test arm32, but I guess it should also work.

[beicause]

There is still a issue that SSE is also compiled on arm unnecessarily. Meanwhile, I didn't consider X86 Android. I will fix these later.

godot_voxel/thirdparty/fast_noise_2/SConscript

Lines 133 to 137 in 56e4cf1

	env_fn2_sse2.add_source_files(env.modules_sources, fn2_sources_sse2)
	env_fn2_sse3.add_source_files(env.modules_sources, fn2_sources_sse3)
	env_fn2_ssse3.add_source_files(env.modules_sources, fn2_sources_ssse3)
	env_fn2_sse41.add_source_files(env.modules_sources, fn2_sources_sse41)
	env_fn2_sse42.add_source_files(env.modules_sources, fn2_sources_sse42)

[beicause]

I think we should compile FastNoise2 on all platforms by default. At least the scalar level is always available.

[beicause]

I don't have an iOS device,
but I created a branch to test iOS in the CI, and it also compiled successfully. https://github.com/beicause/godot_voxel/actions/runs/14616030217/job/41004367330 (It wrongly builds macos template 😅.)

Edit: correct iOS CI https://github.com/beicause/godot_voxel/actions/runs/14616201444/job/41004911388

So NEON might work in arm macOS and iOS ?

[Zylann]

Needs to be tested, I don't have a Mac to confirm that.

[NuclearPhoenixx]

FastNoise2 version 1.0 has just been released with updates to SIMD, so an upgrade to the new release might be something to look at as well.

https://github.com/Auburn/FastNoise2/releases