Update native limits (fixes #507)

[lisyarus]

Updated the WGPUNativeLimits struct to reflect the changes in wgpu-core and webgpu-headers. Specifically,

• Removed maxImmediateSize, as it is now part of WGPULimits
• Added maxBindingArraySamplerElementsPerShaderStage and maxMultiviewViewCount

I've omitted the limits related to mesh shaders & ray query acceleration structres, as afaik the corresponding API is currently not exposed in wgpu-native anyway.

I've also fixed the immediates and texture_arrays examples. The latter one is what sparked this PR in the first place; it had to be reworked a bit, as texture arrays cannot be present in the same bind group as buffers with dynamic offsets, thus I've split the bound group into two.

I've took the liberty of introducing a WGPU_NATIVE_LIMITS_INIT macro that mimicks the WGPU_LIMITS_INIT macro from webgpu.h.

Checklist

• cargo clippy reports no issues
• cargo doc reports no issues
• cargo deny issues have been fixed or added to deny.toml
• Human-readable change descriptions added to CHANGELOG.md under the "Unreleased" heading.
  • If the change does not affect the user (or is a process change), preface the change with "Internal:"
  • Add credit to yourself for each change: Added new functionality. @githubname

[cwfitzgerald]

Amazing thanks for this!

Good thought on adding the init macro!