cmake: Move to a more modern cmake version

CMake 3.12 is a good modern version to help us with the build system
Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

CMakeLists.txt

-cmake_minimum_required(VERSION 3.2)
+cmake_minimum_required(VERSION 3.10)
 
 project(QGroundControl LANGUAGES C CXX)
 
@@ -10,6 +10,8 @@ set(CMAKE_AUTOUIC ON)
 set(CMAKE_AUTORCC ON)
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 
+include(FeatureSummary)
+
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
 	add_compile_options(-Wall -Wextra -Wno-address-of-packed-member)
 endif()