Enable compression by default

Author: slabko

driver/connection.h

@@ -43,7 +43,7 @@ class Connection
     std::int32_t stringmaxlength = 0;
     bool auto_session_id = false;
     std::string client_name;
-    bool enable_http_compression = false;
+    bool enable_http_compression = true;
 
 public:
     std::unique_ptr<Poco::Net::HTTPClientSession> session;