Add Catch2 and Google Test on Cmake

ToDo:
- Add compiling QElectroTech on Cmake (help needed)
- more Tests?
   - Qt Test
   - Boost Test

to test
run qtcreator
File >  open => CMakeLists.txt

tests/googletest/tst_My_test.cpp

@@ -0,0 +1,5 @@
+#include "../../sources/borderproperties.h"
+
+#include <gtest/gtest.h>
+
+TEST(googletest, sample_test) { EXPECT_EQ(1, 1); }