feat: add WASM host functions (Wasmi version)

[mvadari]

High Level Overview of Change

This PR adds all the Wasmi integration code and the host functions specified in XLS-102. It also adds tests for all of this.

Note for reviewers: 10k lines of this PR are just WASM-compiled test fixtures, and another 4k lines are WASM test fixture source code. So while this PR is still quite large, it's not as large as it seems on the surface.

Context of Change

This PR depends on #5999 and replaces #5791

It is part of an effort to split up the Smart Escrow work into smaller, more managable-to-review PRs.

XLS-102: XRPLF/XRPL-Standards#303

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactor (non-breaking change that only restructures code)
• Performance (increase or change in throughput and/or latency)
• Tests (you added tests for code that already exists, or your new feature included in this PR)
• Documentation update
• Chore (no impact to binary, e.g. .gitignore, formatting, dropping support for older tooling)
• Release

API Impact

N/A

Test Plan

Several tests are added to this PR.

[codecov]

Codecov Report

❌ Patch coverage is 95.88437% with 84 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.1%. Comparing base (500bb68) to head (c145598).

Files with missing lines	Patch %	Lines
src/xrpld/app/wasm/detail/HostFuncWrapper.cpp	94.0%	56 Missing ⚠️
src/xrpld/app/wasm/detail/WasmiVM.cpp	93.0%	23 Missing ⚠️
src/xrpld/app/wasm/HostFuncImpl.h	80.0%	4 Missing ⚠️
src/libxrpl/basics/Number.cpp	95.2%	1 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff               @@
##           ripple/wasmi   #6075     +/-   ##
==============================================
+ Coverage          78.6%   79.1%   +0.5%     
==============================================
  Files               818     827      +9     
  Lines             68953   70993   +2040     
  Branches           8247    8304     +57     
==============================================
+ Hits              54166   56133   +1967     
- Misses            14787   14860     +73     

Files with missing lines	Coverage Δ
include/xrpl/basics/Number.h	100.0% <ø> (ø)
include/xrpl/protocol/IOUAmount.h	100.0% <ø> (ø)
include/xrpl/protocol/TER.h	100.0% <ø> (ø)
src/libxrpl/protocol/IOUAmount.cpp	90.1% <100.0%> (+0.1%)	⬆️
src/libxrpl/protocol/TER.cpp	100.0% <ø> (ø)
src/xrpld/app/wasm/HostFunc.h	100.0% <100.0%> (ø)
src/xrpld/app/wasm/ParamsHelper.h	100.0% <100.0%> (ø)
src/xrpld/app/wasm/WasmVM.h	100.0% <100.0%> (ø)
src/xrpld/app/wasm/WasmiVM.h	100.0% <100.0%> (ø)
src/xrpld/app/wasm/detail/HostFuncImpl.cpp	100.0% <100.0%> (ø)
... and 5 more

... and 6 files with indirect coverage changes

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