Make non-uma devices compatible with the metal backend#15
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Android startup already logs dualSrcBlend, which is what made the issue renderbag#15 Mali root cause readable straight from a user's logcat. The Adreno 630 launch crash points at the same blind spot for VK_EXT_descriptor_indexing: nothing in the log revealed that the device lacks it while rt64 uses it unconditionally. Print the extension's presence, the three sub-features the capability is derived from, and the derived value itself. The line sits next to that derivation rather than with the other feature bits so the two cannot drift, and the sub-features are printed individually to tell "extension absent" apart from "extension present, one sub-feature missing". Logging only; no behaviour change. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Devices with discrete memory do not support Shared resource mode in Metal, this PR adds compatibility.