Disallow balances.burn call

Example: https://duniter-portal.axiom-team.fr/?rpc=wss%3A%2F%2Fgdev.coinduf.eu#/explorer/query/0x97a9fb1b05a2c2aab4c793bb12daef687ad04c316d6a2386943b2389268e917d

I burned some ĞD, which is incompatible with RTM.

assigned to @HugoTrentesaux

It's easy to add it to basecall filter, but I do not find a way to add an integration test on this. The test keeps passing despite the filter

mentioned in merge request !307 (merged)

mentioned in commit 6d2626eb

I burned some ĞD, which is incompatible with RTM.

I still do not agree with this sentence, but it's a detail to me anyway.

closed with merge request !307 (merged)

mentioned in commit 2ab1e958