Add MULTISAMPLE_ARRAY format feature flag.

[LaylBongers]

Connections
Closes #8565

Description
This adds a new MULTISAMPLE_ARRAY entry to TextureFormatFeatureFlags. When TEXTURE_ADAPTER_SPECIFIC_FORMAT_FEATURES is enabled and the feature is supported, applications can use this to create 2D Array textures and views with multi-sampling enabled.

Additionally, this is implemented in the Vulkan backend. Following the Vulkan specificiation, this should be allowed:
https://docs.vulkan.org/refpages/latest/refpages/source/VkImageCreateInfo.html
https://docs.vulkan.org/refpages/latest/refpages/source/VkImageViewCreateInfo.html#VUID-VkImageViewCreateInfo-image-04972

However this is not necessarily supported if VK_KHR_portability_subset is used, which is the case for apple platform. In this case support should be detected from multisampleArrayImage.
https://docs.vulkan.org/refpages/latest/refpages/source/VkPhysicalDevicePortabilitySubsetFeaturesKHR.html

Draft To-Dos

• Feedback from someone more experienced with Vulkan. Am I missing something obvious here? Did I interpret the spec right?
• Explicit checking for support in VK_KHR_portability_subset is not yet implemented.
• Currently MULTISAMPLE_ARRAY is marked true on all formats. In theory all formats that support multisample should also support this. Should this be more conservative?
• Given that this bypasses some validation, are there any previous assumptions this breaks? Any things that now need to be explicitly checked?
• If there's low hanging fruit where it could be supported immediately on other platforms too without a lot of changes, that would be a nice-to-have.

Testing
I am actively testing this branch at https://github.com/celphase/indite. Developers with an OpenXR compatible headset should be able to test multiview there.

Squash or Rebase?
Squash

Checklist

• Run cargo fmt.
• Run taplo format.
• Run cargo clippy --tests. If applicable, add:
  • --target wasm32-unknown-unknown
• Run cargo xtask test to run tests.
• If this contains user-facing changes, add a CHANGELOG.md entry.