feat: OpenVX Pipelining, Streaming & Batch Processing KHR extension #201

Job	Run time
build	1m 57s
Build rustVX (main)	1m 38s
Build Khronos OpenVX sample	1m 24s
KHR extension: pipelining stress	37s
graph	11s
data-objects	11s
KHR extension: pipelining fast	9s
KHR extension: user-data-object	8s
baseline	9s
vision-color	11s
Enhanced-Vision: Post-Processing	15s
image-ops	14s
Enhanced-Vision: Advanced Filtering	1m 4s
vision-filters	1m 2s
vision-statistics	9s
vision-features	18s
Enhanced-Vision: Control Flow	11s
Perf gate (PR vs main)	2m 29s
vision-arithmetic	25s
vision-geometric	37s
vision-pyramid	10s
Enhanced-Vision: Feature Extraction	10s
Enhanced-Vision: Tensor Arithmetic	13s
Enhanced-Vision: Tensor Transforms	7s
Benchmark & compare (rustVX vs Khronos sample)	5m 36s
	19m 35s

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