Introduced "reset_state" method to reset all model states in one line (#21595)

* added reset_state method to simplify the user API

* using reset_state method in the tests

docs/snippets/ov_model_with_state_infer.cpp

@@ -57,9 +57,7 @@ int main(int argc, char* argv[]) {
         }
 
         // 7. Initialize memory state before starting
-        for (auto&& state : infer_request.query_state()) {
-            state.reset();
-        }
+        infer_request.reset_state();
 
         //! [part1]
         // input data

src/inference/include/openvino/runtime/infer_request.hpp

@@ -315,6 +315,12 @@ public:
      */
     std::vector<VariableState> query_state();
 
+    /**
+     * @brief Resets all internal variable states for relevant infer request to a value specified as
+     * default for the corresponding `ReadValue` node
+     */
+    void reset_state();
+
     /**
      * @brief Returns a compiled model that creates this inference request.
      * @return Compiled model object.

src/inference/src/infer_request.cpp

@@ -291,6 +291,12 @@ std::vector<VariableState> InferRequest::query_state() {
     return variable_states;
 }
 
+void InferRequest::reset_state(){OV_INFER_REQ_CALL_STATEMENT({
+    for (auto&& state : _impl->query_state()) {
+        state->reset();
+    }
+})}
+
 CompiledModel InferRequest::get_compiled_model() {
     OV_INFER_REQ_CALL_STATEMENT(return {std::const_pointer_cast<ICompiledModel>(_impl->get_compiled_model()), _so});
 }

src/tests/functional/shared_test_classes/include/shared_test_classes/subgraph/stateful_model.hpp

@@ -27,9 +27,7 @@ public:
     }
 
     void reset_state() {
-        for (auto&& state : inferRequest.query_state()) {
-            state.reset();
-        }
+        inferRequest.reset_state();
     }
 
     static void float_compare(const float* expected_res, const float* actual_res, size_t size) {