scripted-diff: Move minisketchwrapper to src/node

-BEGIN VERIFY SCRIPT-
 # Move module
 git mv src/minisketchwrapper.cpp src/node/
 git mv src/minisketchwrapper.h   src/node/
 # Replacements
 sed -i 's:minisketchwrapper:node/minisketchwrapper:g'     $(git grep -l minisketchwrapper)
 sed -i 's:MINISKETCHWRAPPER_H:NODE_MINISKETCHWRAPPER_H:g' $(git grep -l MINISKETCHWRAPPER_H)
 sed -i 's:DBWRAPPER_H:NODE_MINISKETCHWRAPPER_H:g'         ./src/node/minisketchwrapper.h
-END VERIFY SCRIPT-

src/node/minisketchwrapper.h

@@ -0,0 +1,17 @@
+// Copyright (c) 2021 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_NODE_MINISKETCHWRAPPER_H
+#define BITCOIN_NODE_MINISKETCHWRAPPER_H
+
+#include <minisketch.h>
+#include <cstddef>
+#include <cstdint>
+
+/** Wrapper around Minisketch::Minisketch(32, implementation, capacity). */
+Minisketch MakeMinisketch32(size_t capacity);
+/** Wrapper around Minisketch::CreateFP. */
+Minisketch MakeMinisketch32FP(size_t max_elements, uint32_t fpbits);
+
+#endif // BITCOIN_NODE_MINISKETCHWRAPPER_H