gui: replace ext::string with std::string

alib2gui/src/Algorithm/Algorithm.cpp

@@ -95,7 +95,7 @@ Algorithm::execute(const std::vector<std::shared_ptr<abstraction::Value>>& param
                                               abstraction::AlgorithmCategories::AlgorithmCategory::DEFAULT);
 }
-Algorithm::Overload::Overload(ext::string p_returnType,
-                              std::vector<ext::string> p_parameterTypes)
+Algorithm::Overload::Overload(std::string p_returnType,
+                              std::vector<std::string> p_parameterTypes)
         : returnType(std::move(p_returnType))
         , parameterTypes(std::move(p_parameterTypes)) {}

alib2gui/src/Algorithm/Algorithm.hpp

@@ -9,10 +9,10 @@ class Algorithm {
 public:
     struct Overload {
-        Overload(ext::string p_returnType, std::vector<ext::string> p_parameterTypes);
-        ext::string returnType;
-        std::vector<ext::string> parameterTypes;
+        Overload(std::string p_returnType, std::vector<std::string> p_parameterTypes);
+        std::string returnType;
+        std::vector<std::string> parameterTypes;
     };
     explicit Algorithm(std::string p_fullName);

alib2gui/src/Algorithm/Registry.cpp

@@ -13,11 +13,11 @@ void Registry::initialize() {
             auto algorithm = std::make_unique<Algorithm>(name);
             for (const auto& overload: abstraction::AlgorithmRegistry::listOverloads(name, item.second)) {
-                ext::string resultType ( std::get<0>(overload).getResult().first );
-                std::vector<ext::string> paramNames;
+                std::string resultType ( std::get<0>(overload).getResult().first );
+                std::vector<std::string> paramNames;
                 for (const auto& param: std::get<0>(overload).getParams()) {
-                    paramNames.push_back ( ext::string ( std::get<0> ( param ) ) );
+                    paramNames.push_back ( std::string ( std::get<0> ( param ) ) );
                 }
                 Algorithm::Overload _overload { resultType, paramNames };