Upgrade to CXX-17 gtest-1.14 and cmake-3.14

Change-Id: I3bceb90f79235a9c0616c5d7ef9e37e458ffdce6
Signed-off-by: Galantsev, Dmitrii <dmitrii.galantsev@amd.com>

example/CMakeLists.txt.in

@@ -1,13 +1,11 @@
-cmake_minimum_required(VERSION 3.11)
+cmake_minimum_required(VERSION 3.14)
 
 option(CMAKE_VERBOSE_MAKEFILE "Enable verbose output" ON)
 option(CMAKE_EXPORT_COMPILE_COMMANDS "Export compile commands for linters and autocompleters" ON)
 
 project(main LANGUAGES CXX)
-
-set(CMAKE_CXX_STANDARD
-    11
-    CACHE STRING "The C++ standard to use")
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 find_package(amd_smi
     HINTS