chain: add SubmitPackage API for atomic parents+child relay #786

Annotations

10 errors

return with no blank line before (nlreturn)

Magic number: 1000, in <operation> detected (mnd)

type assertion on error will fail on wrapped errors. Use errors.As to check for specific errors (errorlint)

do not define dynamic errors, use wrapped static errors instead: "errors.New(\"submitpackage: child txn not defined\")" (err113)

do not define dynamic errors, use wrapped static errors instead: "errors.New(\"submitpackage: need at least one \" +\n\t\"parent txn\")" (err113)

Duplicate words (the) found (dupword)

unused-parameter: parameter 'child' seems to be unused, consider removing or renaming it as _ (revive)

receiver-naming: receiver name c should be consistent with previous receiver name m for mockChainClient (revive)

unused-parameter: parameter 'maxFeeRateBTCPerVByte' seems to be unused, consider removing or renaming it as _ (revive)

unused-parameter: parameter 'maxFeeRateBTCPerVByte' seems to be unused, consider removing or renaming it as _ (revive)