OnNewTokenAccount backported to polkadot-v0.9.17#1

Draft

apopiak wants to merge 8 commits intopolkadot-v0.9.17from

apopiak/on-new-account-9-17

Commits on Feb 27, 2022

XTokens refactor (#706)
xlc
authored

Commits on Feb 28, 2022

Polkadot v0.9.17 (#705)
zqhxuyuan
authored

Commits on Jun 10, 2022

Merge branch 'polkadot-v0.9.17' of github.com:open-web3-stack/open-runtime-module-library into apopiak/on-new-account-9-17
apopiak
committed