migrate foreign asset to v4 + fix foreign flags #2394

Job	Run time
forkless-update-data	0s
canary	0s
collator-selection	0s
forkless-update-no-data	0s
governance	0s
node-only-update	0s
polkadot-types	0s
try-runtime	0s
xnft	0s
codestyle / yarn_eslint	29s
codestyle / rustfmt	16s
codestyle / clippy	1m 2s
unit-test / develop	1m 15s
xcm / Prepare execution matrix	27s
yarn-dev / opal	1m 8s
yarn-dev / sapphire	1m 6s
yarn-dev / quartz	1m 5s
yarn-dev / unique	1m 7s
xcm / opal	3m 54s
xcm / quartz	2m 55s
xcm / unique	2m 53s
	17m 37s

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