Asgard invariant doesn't account for THOR.RUNE streaming outputs

Details are now present in a thread here on !3014 (merged) ' [invariant] streaming swaps'.

This added regression test illustrates the issue to be addressed:
f345198f
https://gitlab.com/thorchain/thornode/-/jobs/4884130300

Failed Assert: .broken == false
Endpoint Response:
{
  "broken": true,
  "invariant": "asgard",
  "msg": [
    "oversolvent: 22301145264rune"
  ]
}

Code proposal: !3072 (merged)
'Asgard invariant: Account for streaming swap native (RUNE) output'.

(Now also closed by !2843 (merged), which needs to close it for a regression test.)