Updated build system to fix issues

- Application could not be launched by the invoker because of some
  missing compiler flags (-rdynamic -pie)
- Private libraries were not found due to incorrect rpath being set
- Moved the qml list of files for sailfish from qtquick to sailfish
  (Stupid mistake I made because my editor doesn't really differentiate
  between different files with the same name in different folders)

CMakeLists.txt

@@ -3,6 +3,7 @@ project(harbour-sailfin)
 set (CMAKE_CXX_STANDARD 17)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/")
 set(CMAKE_AUTOMOC ON)
+cmake_policy(SET CMP0048 NEW)
 
 # Options
 option(SAILFISHOS "Build SailfishOS version of application")