### What this PR does / why we need it?
After extensive testing, we are happy to say that guided_decoding is
fully supported by npu, in this pr, we add guided_decoding integrated
with our test, mainly does the following things:
1. test v0 supported backends including ` "outlines",
"lm-format-enforcer","xgrammar"`
2. test v1 supported backends including ` "guidance", "xgrammar"`
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Signed-off-by: wangli <wangli858794774@gmail.com>
