feat: add WAMR dependency

[mvadari]

High Level Overview of Change

This PR adds WAMR as a dependency to rippled, in preparation for Smart Escrows.

Context of Change

Splitting up #5600 into more managably reviewable chunks

XLS-102

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

CI passes and everything compiles in properly without error.

Future Tasks

Additional PRs for the rest of the Smart Escrow functionality

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.2%. Comparing base (f28ba57) to head (334bcfa).
⚠️ Report is 50 commits behind head on develop.

Additional details and impacted files

@@            Coverage Diff            @@
##           develop   #5790     +/-   ##
=========================================
- Coverage     78.2%   78.2%   -0.0%     
=========================================
  Files          816     816             
  Lines        68948   68948             
  Branches      8352    8354      +2     
=========================================
- Hits         53950   53941      -9     
- Misses       14998   15007      +9     

see 5 files with indirect coverage changes

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[oleks-rip]

LGTM

[mathbunnyru]

We've just removed all conan packaging code from external, let's not add it back please.
Could you please create this PR in http://github.com/XRPLF/conan-center-index?

It's our fork of official CCI, so we will be reviewing code, not Conan team

[mvadari]

@oleks-rip

[oleks-rip]

XRPLF/conan-center-index#17, please add it to conan

[mathbunnyru]

This separate PR is no longer needed because we added the dependency to our CCI fork (and Artifactory).
So we can (and probably should) add the usage of the new package directly in the PR where it is actually needed (otherwise, this is untested code and a dependency which we don't yet use).

If you really need it, this PR should be refactored to use the new package we added.

[mathbunnyru]

Overall, LGTM, left some nitpicking comments

[vvysokikh1]

lgtm, but I'll leave the approval to @mathbunnyru

[mathbunnyru]

lgtm, but I'll leave the approval to @mathbunnyru

Already left my review, so waiting for these small things to be fixed

[mathbunnyru]

I don't know if this is related, so leaving this change to rippled team

[mvadari]

Closed in favor of #5999