Move cmake modules into modules folder and include it in CMakeLists.txt

CMakeLists.txt

@@ -6,6 +6,7 @@ cmake_policy(SET CMP0063 NEW)
 set(QT_MIN_VERSION "5.6.0")
 set(KF5_MIN_VERSION "5.2.0")
 
+set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/modules/")
 find_package(ECM 1.0.0 NO_MODULE)
 if (ECM_FOUND)
     set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR}