Merge #14555: Move util files to directory

2068f089c8 scripted-diff: Move util files to separate directory. (Jim Posen)

Pull request description:

  As discussed [here](https://github.com/bitcoin/bitcoin/pull/14074#issuecomment-429090584), this establishes a `util/` directory to introduce more organizational structure and have a clear place for new util files. It's really not scary to review, it's just one big scripted diff.

Tree-SHA512: 39cf15480d7d35e987b6088d52a857a2d5b1802e36c6b815eb42718d80cd95e669757af9bcc7c04426cd8523662cb1050b8da1e2377d3730672820ed298b894b

src/wallet/coincontrol.cpp

@@ -4,7 +4,7 @@
 
 #include <wallet/coincontrol.h>
 
-#include <util.h>
+#include <util/system.h>
 
 void CCoinControl::SetNull()
 {

src/wallet/coinselection.cpp

@@ -4,8 +4,8 @@
 
 #include <wallet/coinselection.h>
 
-#include <util.h>
-#include <utilmoneystr.h>
+#include <util/system.h>
+#include <util/moneystr.h>
 
 #include <boost/optional.hpp>
 

src/wallet/crypter.cpp

@@ -8,7 +8,7 @@
 #include <crypto/sha512.h>
 #include <script/script.h>
 #include <script/standard.h>
-#include <util.h>
+#include <util/system.h>
 
 #include <string>
 #include <vector>

src/wallet/db.cpp

@@ -8,7 +8,7 @@
 #include <addrman.h>
 #include <hash.h>
 #include <protocol.h>
-#include <utilstrencodings.h>
+#include <util/strencodings.h>
 #include <wallet/walletutil.h>
 
 #include <stdint.h>

src/wallet/db.h

@@ -11,7 +11,7 @@
 #include <serialize.h>
 #include <streams.h>
 #include <sync.h>
-#include <util.h>
+#include <util/system.h>
 #include <version.h>
 
 #include <atomic>

src/wallet/feebumper.cpp

@@ -12,8 +12,8 @@
 #include <policy/rbf.h>
 #include <validation.h> //for mempool access
 #include <txmempool.h>
-#include <utilmoneystr.h>
-#include <util.h>
+#include <util/moneystr.h>
+#include <util/system.h>
 #include <net.h>
 
 //! Check whether transaction has descendant in wallet or mempool, or has been

src/wallet/fees.cpp

@@ -7,7 +7,7 @@
 
 #include <policy/policy.h>
 #include <txmempool.h>
-#include <util.h>
+#include <util/system.h>
 #include <validation.h>
 #include <wallet/coincontrol.h>
 #include <wallet/wallet.h>

src/wallet/init.cpp

@@ -8,8 +8,8 @@
 #include <net.h>
 #include <scheduler.h>
 #include <outputtype.h>
-#include <util.h>
-#include <utilmoneystr.h>
+#include <util/system.h>
+#include <util/moneystr.h>
 #include <validation.h>
 #include <walletinitinterface.h>
 #include <wallet/rpcwallet.h>

src/wallet/rpcdump.cpp

@@ -9,8 +9,8 @@
 #include <script/script.h>
 #include <script/standard.h>
 #include <sync.h>
-#include <util.h>
-#include <utiltime.h>
+#include <util/system.h>
+#include <util/time.h>
 #include <wallet/wallet.h>
 #include <merkleblock.h>
 #include <core_io.h>

src/wallet/rpcwallet.cpp

@@ -23,8 +23,8 @@
 #include <script/sign.h>
 #include <shutdown.h>
 #include <timedata.h>
-#include <util.h>
-#include <utilmoneystr.h>
+#include <util/system.h>
+#include <util/moneystr.h>
 #include <wallet/coincontrol.h>
 #include <wallet/feebumper.h>
 #include <wallet/rpcwallet.h>

src/wallet/test/psbt_wallet_tests.cpp

@@ -4,7 +4,7 @@
 
 #include <key_io.h>
 #include <script/sign.h>
-#include <utilstrencodings.h>
+#include <util/strencodings.h>
 #include <wallet/rpcwallet.h>
 #include <wallet/wallet.h>
 #include <univalue.h>

src/wallet/test/wallet_crypto_tests.cpp

@@ -3,7 +3,7 @@
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <test/test_bitcoin.h>
-#include <utilstrencodings.h>
+#include <util/strencodings.h>
 #include <wallet/crypter.h>
 
 #include <vector>

src/wallet/wallet.cpp

@@ -25,7 +25,7 @@
 #include <shutdown.h>
 #include <timedata.h>
 #include <txmempool.h>
-#include <utilmoneystr.h>
+#include <util/moneystr.h>
 #include <wallet/fees.h>
 #include <wallet/walletutil.h>
 

src/wallet/wallet.h

@@ -12,11 +12,11 @@
 #include <streams.h>
 #include <tinyformat.h>
 #include <ui_interface.h>
-#include <utilstrencodings.h>
+#include <util/strencodings.h>
 #include <validationinterface.h>
 #include <script/ismine.h>
 #include <script/sign.h>
-#include <util.h>
+#include <util/system.h>
 #include <wallet/crypter.h>
 #include <wallet/coinselection.h>
 #include <wallet/walletdb.h>

src/wallet/walletdb.cpp

@@ -12,8 +12,8 @@
 #include <protocol.h>
 #include <serialize.h>
 #include <sync.h>
-#include <util.h>
-#include <utiltime.h>
+#include <util/system.h>
+#include <util/time.h>
 #include <wallet/wallet.h>
 
 #include <atomic>

src/wallet/walletutil.cpp

@@ -4,7 +4,7 @@
 
 #include <wallet/walletutil.h>
 
-#include <util.h>
+#include <util/system.h>
 
 fs::path GetWalletDir()
 {