Pull in full sqlite_modern_cpp repo for the license as it is not attached to source files

common/sqlite_modern_cpp/tests/shared_connection.cc

@@ -0,0 +1,27 @@
+#include <iostream>
+#include <cstdio>
+#include <cstdlib>
+#include <sqlite_modern_cpp.h>
+#include <catch2/catch.hpp>
+
+using namespace  sqlite;
+using namespace std;
+
+TEST_CASE("shared connections work fine", "[shared_connection]") {
+    database db(":memory:");
+
+    {
+        auto con = db.connection();
+
+        {
+            database db2(con);
+            int test = 0;
+            db2 << "select 1" >> test;
+            REQUIRE(test == 1);
+        }
+
+        int test = 0;
+        db << "select 1" >> test;
+        REQUIRE(test == 1);
+    }
+}