[xcm] `GlobalConsensusConvertsFor` for remote relay chain (based on pevious...

[xcm] `GlobalConsensusConvertsFor` for remote relay chain (based on pevious GlobalConsensusParachainConvertsFor) (#7517)

* [xcm] `GlobalConsensusConvertsFor` for remote relay chain (based on previous GlobalConsensusParachainConvertsFor)

* Typo

* PR fix (constants in test)

* Re-export of `GlobalConsensusConvertsFor`

* assert to panic

* Update xcm/src/v3/multiasset.rs

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>

* Update xcm/xcm-builder/src/location_conversion.rs

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>

* Update xcm/xcm-builder/src/location_conversion.rs

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>

* Review fixes

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Co-authored-by: parity-processbot <>
Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>