perf(python): optimize pystr deserialize perf

[chaokunyang]

What does this PR do?

This PR implemented an optimized version of PyUnicode_FromUCS1/Fury_PyUnicode_FromUCS2 for faster performance by :

• replace max char check using SIMD
• Cast ucs2 array to ucs1 array by SIMD

Related issues

Does this PR introduce any user-facing change?

• [ ] Does this PR introduce any public API change?
• [ ] Does this PR introduce any binary protocol compatibility change?

Benchmark

[chaokunyang]

cc @penguin-wwy @pandalee99 @theweipeng