[Do not Merge]Enable eth foreign asset registration in starlight

[dimartiro]

Description

Enable ethereum foreign assets registration in starlight through pallet_foreign_asset_creator ensuring only root can create, modify or destroy these tokens.
This aims to register ethereum tokens only but since we don't have a way to filter that in pallet_foreign_asset_creator we decided to only allow root for this calls.

Note: weights were taken from dancelight (as the other weights in starlight)

Summary

• Add required pallets pallet_assets and pallet_foreign_asset_creator
• Add benchmarks
• Integration tests

[github-actions]

WASM runtime size check:

Compared to target branch

dancebox runtime: 1524 KB (no changes) ✅

flashbox runtime: 888 KB (no changes) ✅

dancelight runtime: 2332 KB (no changes) ✅

container chain template simple runtime: 1168 KB (no changes) ✅

container chain template frontier runtime: 1456 KB (no changes) ✅

[github-actions]

Coverage Report

(master)

@@                              Coverage Diff                               @@
##           master   diego-starlight-foreign_asset_registration      +/-   ##
==============================================================================
- Coverage   64.87%                                       64.65%   -0.22%     
+ Files         478                                          480       +2     
+ Lines       78134                                        78603     +469     
==============================================================================
+ Hits        50688                                        50814     +126     
+ Misses      27446                                        27789     +343     

Files Changed	Coverage
/chains/orchestrator-relays/runtime/starlight/src/lib.rs	36.58% (+0.14%)	✅
/chains/orchestrator-relays/runtime/starlight/src/tests/integration_test.rs	99.84% (+0.04%)	✅

Coverage generated Wed Apr 30 13:26:19 UTC 2025