* Use MultiLocation as xtokens transfer dest type.

* Make clippy happy.

* Use cumulus xcm-handler to execute XCM locally.

* Add docstring for xtokens config.

* Replace XcmError::Undefined usage.

* make clippy happy

* Add xtokens module docstring.

* Add xtokens readme.

* Add documentations for xcm-support.

* Add xtokens and xcm-support entries in main readme.

* Handle unknown assets in TransactAsset impl.

* More documentations.

* Clean code.

* Renaming.

* Should try to deposit known asset first.

* Return error if no UnknownAsset impl.

* Make clippy happy.

* Impl unknown tokens pallet.

* Fix workspace pallet path.

* Make clippy happy.

* Clippy, be happy.

* Unit tests.

* Fix mocks.

* Replace deprecated.

* Update README.md

* Update README.md

* refactor

* Added command line options for output, headers, and templates

* Fixed options to conform to standard cli

* Added weight-gen cli

* fixed dependencies

* add Handler (#431)

* remove disable-tokens-by-owner (#434)

* Cross-chain transfer rework (#432)

* Reserve chain trait.

* Rework cross-chain transfer.

* Remove relay chain balance convert.

* Add 'Parse' trait.

* Change transfer_multiasset fn signature.

* Add transfer dispatchable call.

* Update doc.

* Use xcm-simulator to mock network.

* Send relay chain asset to sibling unit test.

* Move location traits into orml-traits.

* Add MultiNativeAsset filter for is reserve check.

* More unit tests.

* Failing edge case unit tests.

* Handle zero amount asset case.

* Fix mocks.

* Renaming.

* Update currency adapter to work with new xtokens impl (#436)

* Xcm support implementations rework.

* Update xtokens mock.

* Use CurrencyId convert. (#437)

* Use CurrencyId convert.

* Apply review suggestions.

* Update xtokens docs. (#438)

* Update xtokens docs.

* Fix typo.

* Update imbalances impl.

* Don't deposit failure event in orml-unknown-tokens. (#440)

* Don't deposit failure event in orml-unknown-tokens.

* Patch substrate/polkadot/cumulus.

* Fix patch.

* Update README.md (#441)

Include Zeitgeist into "Projects using ORML" section

* Add PoV size in benchmarking. (#442)

* Bump cumulus ref in cargo patch. (#443)

* fix missing features (#444)

* fix missing features

* test with benchmarks

* update auction weight (#445)

* Bump dependencies. (#448)

* Replaced unwraps with expects

Co-authored-by: Xiliang Chen <xlchen1291@gmail.com>
Co-authored-by: Shaun Wang <spxwang@gmail.com>
Co-authored-by: Harald Heckmann <harald.heckmann93@web.de>
Co-authored-by: wangjj9219 <183318287@qq.com>