Merge pull request #19215 from OrestChura:oc/bRect_perftests

[G-API]: Performance tests for boundingRect

* Update boundingRect() tests with the changes from fitLine() PR

* Add performance tests for boundingRect

* Applying comment about g_type_of_t

* Addressing comments

* Addressing comment: replace cmp_f by CompareF in perf.tests + add the default constructor for CompareF

* Fix typo

modules/gapi/test/common/gapi_tests_common.hpp

@@ -593,6 +593,8 @@ using compare_vec_f = std::function<bool(const cv::Vec<Elem, cn> &a, const cv::V
 template<typename T1, typename T2>
 struct CompareF
 {
+    CompareF() = default;
+
     using callable_t = std::function<bool(const T1& a, const T2& b)>;
     CompareF(callable_t&& cmp, std::string&& cmp_name) :
         _comparator(std::move(cmp)), _name(std::move(cmp_name)) {}