FancyZones: improve windows and apps filtering (#673)

Unifies the way windows are considered "interesting" by FancyZone.
Berfore the change WinKey + arrows would use different method than
dragging. This PR makes both use the WinKey + arrows method.

Cleans up FancyZones Settings.cpp by removing m_configStrings variable.
Contrary to its name it was used to create color picker control.

Adds a multiline option to the text input to settings. Uses this to
provide the user with a way to exclude certain apps from snapping to
zones.

src/common/common.h

@@ -11,6 +11,12 @@ std::optional<RECT> get_window_pos(HWND hwnd);
 std::optional<POINT> get_mouse_pos();
 // Gets active window, filtering out all "non standard" windows like the taskbar, etc.
 HWND get_filtered_active_window();
+// Gets window ancestor (usualy the window we want to do stuff with), filtering out all "non standard" windows like the taskbar, etc. and provide the app process path
+struct WindowAndProcPath {
+  HWND hwnd = nullptr;
+  std::wstring process_path;
+};
+WindowAndProcPath get_filtered_base_window_and_path(HWND window);
 
 // Calculate sizes
 int width(const RECT& rect);