Add UI setting for AutoProperties decompilation

ILSpy/Options/DecompilerSettingsPanel.xaml

@@ -8,6 +8,7 @@
 		<CheckBox IsChecked="{Binding AsyncAwait}">Decompile async methods (async/await)</CheckBox>
 		<CheckBox IsChecked="{Binding QueryExpressions}" IsEnabled="{Binding AnonymousMethods}">Decompile query expressions</CheckBox>
 		<CheckBox IsChecked="{Binding ExpressionTrees}">Decompile expression trees</CheckBox>
+		<CheckBox IsChecked="{Binding AutomaticProperties}">Decompile automatic properties</CheckBox>
 		<CheckBox IsChecked="{Binding UseDebugSymbols}">Use variable names from debug symbols, if available</CheckBox>
 		<CheckBox IsChecked="{Binding ShowXmlDocumentation}">Show XML documentation in decompiled code</CheckBox>
 		<CheckBox IsChecked="{Binding FoldBraces}">Enable folding on all blocks in braces</CheckBox>

ILSpy/Options/DecompilerSettingsPanel.xaml.cs

@@ -53,6 +53,7 @@ namespace ICSharpCode.ILSpy.Options
 			s.AnonymousMethods = (bool?)e.Attribute("anonymousMethods") ?? s.AnonymousMethods;
 			s.YieldReturn = (bool?)e.Attribute("yieldReturn") ?? s.YieldReturn;
 			s.AsyncAwait = (bool?)e.Attribute("asyncAwait") ?? s.AsyncAwait;
+			s.AutomaticProperties = (bool?) e.Attribute("automaticProperties") ?? s.AutomaticProperties;
 			s.QueryExpressions = (bool?)e.Attribute("queryExpressions") ?? s.QueryExpressions;
 			s.ExpressionTrees = (bool?)e.Attribute("expressionTrees") ?? s.ExpressionTrees;
 			s.UseDebugSymbols = (bool?)e.Attribute("useDebugSymbols") ?? s.UseDebugSymbols;
@@ -68,6 +69,7 @@ namespace ICSharpCode.ILSpy.Options
 			section.SetAttributeValue("anonymousMethods", s.AnonymousMethods);
 			section.SetAttributeValue("yieldReturn", s.YieldReturn);
 			section.SetAttributeValue("asyncAwait", s.AsyncAwait);
+			section.SetAttributeValue("automaticProperties", s.AutomaticProperties);
 			section.SetAttributeValue("queryExpressions", s.QueryExpressions);
 			section.SetAttributeValue("expressionTrees", s.ExpressionTrees);
 			section.SetAttributeValue("useDebugSymbols", s.UseDebugSymbols);