Support BMA optimizations
- [x] Use DuniterPy dev from git
- [x] Use optimizations: clients/python/duniterpy#201: Set `pubkey_query=True` to `wot` path
- [x] `silkaj.money.tools::get_sources()`: `receiving`/pending transfers are no longer part of `bma.tx.sources`. Adapt `get_sources()`?
- [x] Test all Silkaj commands against Duniter v1.8.7/BMA and Duniter v1.8.6 (for compatibility check)
- [x] #483+
issue