Add v128 type and SIMD intrinsics#2

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luchak wants to merge 11 commits intoexoticorn:masterfrom

Commits on Jan 25, 2023

Implement i8x16.shuffle
luchak
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Commits on Feb 14, 2023

Fix some intrinsics data entry bugs
luchak
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Commits on Feb 15, 2023

Make *.neg opcodes correctly take only one operand
luchak
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