feat: add three impls for random seed

[peter-jerry-ye]

Related Issues

• Related issues: #____

This PR adds the random bytes generator for the Wasm runtime. Three implementations are provided, one is to be chosen based on the interface.

• wasip1 provides the API based on wasi preview 1
• wasip2 provides the API based on wasi preview 2
• custom provides the API based on custom names

The main.mbt demonstrates the examples of using them to provide insecure seeds as two UInt64.

Unfortunately, when returning a tuple, it is not using multi-value return but rather a struct.

Type of Pull Request

• Bug fix
• New feature
  • I have already discussed this feature with the maintainers.
• Refactor
• Performance optimization
• Documentation
• Other (please describe):

Does this PR change existing behavior?

• Yes (please describe the changes below)

  • ---

• No

Does this PR introduce new dependencies?

• No
• Yes (please check binary size changes)

Checklist:

• Tests added/updated for bug fixes or new features
• Compatible with Windows/Linux/macOS

[semanticdiff-com]

Review changes with  

Changed Files

File	Status
crates/moonrun/src/template/js_glue.js	5% smaller
crates/moonrun/src/main.rs	0% smaller
crates/moonrun/tests/test_cases/test_insecure_seed.in/.gitignore	Unsupported file format
crates/moonrun/tests/test_cases/test_insecure_seed.in/README.md	Unsupported file format
crates/moonrun/tests/test_cases/test_insecure_seed.in/main/custom.mbt	Unsupported file format
crates/moonrun/tests/test_cases/test_insecure_seed.in/main/ffi.mbt	Unsupported file format
crates/moonrun/tests/test_cases/test_insecure_seed.in/main/main.mbt	Unsupported file format
crates/moonrun/tests/test_cases/test_insecure_seed.in/main/moon.pkg.json	0% smaller
crates/moonrun/tests/test_cases/test_insecure_seed.in/main/wasip1.mbt	Unsupported file format
crates/moonrun/tests/test_cases/test_insecure_seed.in/main/wasip2.mbt	Unsupported file format
crates/moonrun/tests/test_cases/test_insecure_seed.in/moon.mod.json	0% smaller

[lynzrand]

the js glue part looks good to me. pending on apis