* Add XCM Origin and converter

* IsMajority filter can be location-prefixed

* Update xcm/pallet-xcm/src/lib.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Update xcm/src/v0/multi_location.rs

Co-authored-by: Alexander Popiak <[email protected]>

* Introduce UsingComponents to allow reuse of fee payment in XCM

* Use Drop rather than finalize

* Add errors for weight.

* Apply suggestions from code review

Co-authored-by: Alexander Popiak <[email protected]>

* Fixes

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

Co-authored-by: Kian Paimani <[email protected]>

* Various XCM fixes and improvements

* Fixes

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

Co-authored-by: Alexander Popiak <[email protected]>

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

Co-authored-by: Alexander Popiak <[email protected]>

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

Co-authored-by: Alexander Popiak <[email protected]>

* Fixes

Co-authored-by: Alexander Popiak <[email protected]>
Co-authored-by: Kian Paimani <[email protected]>