Cpp restbed server improvements (#13030)

* Keep old implementation of cpp-restbed generator as cpp-restbed-server-deprecated

* Refactor operation path processing

* Restructure samples directory to better allow writing tests

* Improve templates for cpp-restbed-server

Improve templates

* Add integration tests

* Improvement in templates for cpp-restbed-server

* Fix tests

* Improve cpp-restbed generator

* Improve cpp-restbed-server

* Add more tests

* Add suppoert for arrays of enums in query params

* Generate CMakeLists.txt

* Small improvements and example in Readme

* Add integration tests to maven project

* Update doc

docs/generators/cpp-restbed-server.md

@@ -29,9 +29,10 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 
 | Type/Alias | Imports |
 | ---------- | ------- |
-|Object|#include "Object.h"|
+|file|#include <string>|
 |restbed::Bytes|#include <corvusoft/restbed/byte.hpp>|
 |std::map|#include <map>|
+|std::set|#include <set>|
 |std::string|#include <string>|
 |std::vector|#include <vector>|