Add reinterpret-like Wasm APIs

[Robbepop]

Extends wasmi_core::wasm API with the following reinterpret-like (no-op) functions:

• fn i64_extend_i32_u(value: u32) -> u64;
• fn i32_reinterpret_f32(value: f32) -> i32;
• fn i64_reinterpret_f64(value: f64) -> i64;
• fn f32_reinterpret_i32(value: i32) -> f32;
• fn f64_reinterpret_i64(value: i64) -> f64;

Pulled out of #1512.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.31%. Comparing base (bf8e227) to head (2ba7d5e).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1555      +/-   ##
==========================================
- Coverage   72.35%   72.31%   -0.04%     
==========================================
  Files         179      179              
  Lines       16328    16321       -7     
==========================================
- Hits        11814    11803      -11     
- Misses       4514     4518       +4     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.