Enable cppcoreguidelines-special-member-functions checks

Part of enforcing cpp core guidelines involves explicitly including all
constructors required on a non-trivial class.  We were missing quite a
few.  In all cases, the copy/move/and operator= methods are simply
deleted.

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: Ie8d6e8bf2bc311fa21a9ae48b0d61ee5c1940999
diff --git a/http/http_connection.hpp b/http/http_connection.hpp
index 6de2bf7..77886c5 100644
--- a/http/http_connection.hpp
+++ b/http/http_connection.hpp
@@ -81,6 +81,11 @@
                          << connectionCount;
     }
 
+    Connection(const Connection&) = delete;
+    Connection(Connection&&) = delete;
+    Connection& operator=(const Connection&) = delete;
+    Connection& operator=(Connection&&) = delete;
+
     void prepareMutualTls()
     {
         std::error_code error;