Add direct native int8 convrot quantization of v1 test

#1

This PR adds a direct native int8 convrot quantization of v1 test.

Labeled HQ due to selective protection of edges in source bf16 precision (blocks 0,1,47-49), preserving all other tensors in their original source precision.

The smaller activation aware quantizations for lower memory requirements and lower-end GPUs with improved quality will come next.

Actual VRAM usage depends on the workflow and other loaded models.

A full model card and standalone releases will follow only once gating for S3 is lifted.

TenStrip changed pull request status to merged

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