Add separate init implementations instead of sharing existing bitcoind
and bitcoin-node ones, so they can start to be differentiated in
upcoming commits with node and wallet code no longer linked into the
bitcoin-gui binary and wallet code no longer linked into the
bitcoin-node binary.
This commit adds wallet-tool, a tool for creating and interacting with
wallet files. Original implementation was by Jonas Schnelli
<dev@jonasschnelli.ch> with modifications by John Newbery
<john@johnnewbery.com>
MSVC files were provided by Chun Kuan Lee <ken2812221@gmail.com>:
build: Add MSVC project files for bitcoin-wallet-tool