Move source code to src/ dir

CMakeLists.txt

@@ -19,15 +19,20 @@ qt_add_executable(appSolitare
     qml.qrc
 )
 
+file(GLOB_RECURSE SOURCES
+    src/*.cpp
+    src/*.h
+)
+
 qt_add_qml_module(appSolitare
     URI Solitare
     VERSION 1.0
     SOURCES
-        playingcard.h playingcard.cpp
-        gamestate.h gamestate.cpp
-        columnslot.h columnslot.cpp
+        ${SOURCES}
 )
 
+target_include_directories(appSolitare PRIVATE ${CMAKE_SOURCE_DIR}/src)
+
 # Qt for iOS sets MACOSX_BUNDLE_GUI_IDENTIFIER automatically since Qt 6.1.
 # If you are developing for iOS or macOS you should consider setting an
 # explicit, fixed bundle identifier manually though.