Moved all demo programs into subfolder

DemoPrograms/TutorialCPUUtilization.py

@@ -0,0 +1,18 @@
+import PySimpleGUI as sg
+import psutil
+
+layout = [ [sg.Text('CPU Utilization')] ,
+           [sg.Text('', size=(8,2), font='Helvetica 20', justification='center', key='_text_')],
+           [sg.Exit()]]
+
+window = sg.Window('CPU Meter').Layout(layout)
+
+while True:
+    button, values = window.ReadNonBlocking()
+
+    if button == 'Exit' or values is None:
+        break
+
+    cpu_percent = psutil.cpu_percent(interval=1)
+
+    window.FindElement('_text_').Update(f'CPU {cpu_percent:02.0f}%')