* Rename BlockHeaderDAO.getNChildren() to BlockHeaderDAO.getNAncestor() as that is what it actually does
* This changes the behavior of BlockHeaderDAO.getNAncestors from the previous implementation which just fetched headers in between two heights, to actually validating the headers that are fetched from the database with Blockchain.reconstructFromheaders()
* Run scalafmt
* Replace BlockHeader.getNAncestors call to Blockchain.reconstructFromHeaders() with Blockchain.connectWalkBackwards() so that we don't do full POW validation from the database, just make sure the headers connect to avoid reorg problems. Also add some more informative logs
* Address Roman's code review
* Added Bouncy Castle fallback to all Secp calls in ECKey.scala
* Fixed bugs and made ExtKey support use of BouncyCastle
* An attempt to add bouncy castle testing to CI
* Responded to review
* De-coupled libsecp256k1 uses from Bouncy Castle uses
* Responded to review
* Add disclaimers to the wallet/key-manager around API breaking changes and limitations of the current iteration of the wallet
* Reword as Ben suggests
* Implement example of starting a neutrino node and example of adding a callback to node.md
Fix port number
* Clean up some names in the example
* Make sure we get the correct bitcoind binary with neutrino p2p support in the example
* Add wallet rescan tests
* Create FilterSync, which gives us an API inside of the chain project to sync filters with
Add another unit test to filter sync
Add more unit tests for ChainSync and FilterSync
Clean up some docs, remove some extra lines of code
Run scalafmt
Add filter-sync.md
Cleanup some nits
Add more information of how FilterSync.syncFilters() works
Add 'FilterWithHeaderHash' type so that we can actually validate/verify block headers that are being fed into the chain project
Run scalafmt, hide imports in filter-sync.md so code appears cleaner
Move implicits out of invisible block as it seems to cause errors
Make it so FilterSync processes filters in batches rather than fetching them all at once
Fix compile error
* WIP bitcoind implement ChainQueryApi
* rework fixtures to be able to support injecting ChainQueryApi implemented by bitcoind into our fixture infrastructure for creating wallets
* Fix rebase problem
* Implement getFiltersBetweenHeight() with ben's solution
* WIP Start implementing NodeApi against bitcoind
* Actually inject the bitcoind backed nodeApi into our fixture
* Get first rescan test working for rescanning the entire blockchain
* Implement test case for rescanning from a specific height
* Fix NeutrinoNodeWalletTest test case that uses a experimental version of bitcoind, for now i believe our experimental binary is on v18
* Add wallet-rescan.md, add helper method to WalletApi that allows you to clear out the wallet's utxos/addresses
* Add another log to try to debug CI
* Address code review
* Fix wrong ordering of deletion of tables in clearUtxosAndAddresses()
* reset logging level
