[tools] Add wallet inspection and modification tool

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

1 files changed, 2 insertions, 2 deletions

diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 098055673b..154ae2d51f 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -398,7 +398,7 @@ bool CWallet::LoadWatchOnly(const CScript &dest)
     return CCryptoKeyStore::AddWatchOnly(dest);
 }
 
-bool CWallet::Unlock(const SecureString& strWalletPassphrase)
+bool CWallet::Unlock(const SecureString& strWalletPassphrase, bool accept_no_keys)
 {
     CCrypter crypter;
     CKeyingMaterial _vMasterKey;
@@ -411,7 +411,7 @@ bool CWallet::Unlock(const SecureString& strWalletPassphrase)
                 return false;
             if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, _vMasterKey))
                 continue; // try another master key
-            if (CCryptoKeyStore::Unlock(_vMasterKey))
+            if (CCryptoKeyStore::Unlock(_vMasterKey, accept_no_keys))
                 return true;
         }
     }