This commit finalizes the integration of Palladium Lightning with the Palladium Core backend, making it trivial for developers to spin up and test a local regtest network. Key changes: - Created [TESTING_PALLADIUM.md](cci:7://file:///home/davide/lightning-plm/TESTING_PALLADIUM.md:0:0-0:0) with comprehensive regtest instructions. - Linked the new testing guide in the main [README.md](cci:7://file:///home/davide/lightning-plm/README.md:0:0-0:0). - Ignored `/palladium-bin/` in `.gitignore` to allow developers to drop backend binaries locally without accidentally committing them. - Patched `contrib/startup_regtest.sh` to automatically detect and use these local `palladiumd`/`palladium-cli` binaries if present, removing the strict need to manually export environment variables. - Fixed a false-positive timeout error in `startup_regtest.sh` when parsing the absent `clnrest` plugin logs
These are standard bitcoin manipulation routines which should be provided by any normal bitcoin library in whatever language you choose. The ones here are standalone ones taken from bitcoin core and some I wrote, many taken from bitcoin-iterate and pasted in here.