Bifrost integration with Moonbeam [xcBNC and GLMR]

[mmaurello]

Description

Bifrost integration with Moonbeam [xcBNC and GLMR]. We add interfaces in the config package to adapt to a new param-function set of the token and assetRegistry pallets

Checklist

• [x] If this requires a documentation change, I have created a PR in moonbeam-docs repository.
• [x] If this requires it, I have updated the Readme
• [x] If necessary, I have updated the examples
• [x] I have verified if I need to create/update unit tests
• [x] I have verified if I need to create/update acceptance tests
• [x] If necessary, I have run acceptance tests on this branch in CI

[ekenigs]

Please don't forget that we need a balance for acceptance tests or we should skip them.