o	Enter/paste your Api key or set it in PGonApiKey in PGApi.cs
o	Simulation mode is available for pre/post market hours
		Uses Testing\PGonJSONTextTest.txt
		Api key is not required for simulation mode
o	Display of text is selectable 
		Raw JSON sent by Polygon servers
		Values from deserialzed C# classes
o	Streaming/simulation can be paused or restarted
o	Advising symbols
		A default symbol is advised
		Symbols are advised on selection
		Symbols can be typed into the Symbol combo box to add them to advised symbols
•	Manual entered symbols are not saved when the app is closed
	o	The Escape key will close the window