Compat: Fix compat tests for depthOrArrayLayers restrictions

[greggman]

textureBindingViewDimension = '2d' must have depthOrArrayLayers = 1 textureBindingViewDimension = 'cube' must have depthOrArrayLayers = 6

For the createBindGroup test we just needed to skip when it's '2d' and not depthOrArrayLayers === 1

For the createTexture test we just need to pass in the correct depthOrArrayLayers for the given textureBindingViewDimension so we can test what we really want to test (textureBindingViewDimension vs dimension). The test below that tests depthOrArrayLayers vs textureBindingViewDimension

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Requirements for PR author:

• All missing test coverage is tracked with "TODO" or .unimplemented().
• New helpers are /** documented */ and new helper files are found in helper_index.txt.
• Test behaves as expected in a WebGPU implementation. (If not passing, explain above.)

Requirements for reviewer sign-off:

• Tests are properly located in the test tree.
• Test descriptions allow a reader to "read only the test plans and evaluate coverage completeness", and accurately reflect the test code.
• Tests provide complete coverage (including validation control cases). Missing coverage MUST be covered by TODOs.
• Helpers and types promote readability and maintainability.

When landing this PR, be sure to make any necessary issue status updates.