add UseCorrectCasing (#845)

Author: bergmeister

src/PowerShellEditorServices.Protocol/Server/LanguageServerSettings.cs

@@ -178,6 +178,7 @@ public CodeFormattingSettings(CodeFormattingSettings codeFormattingSettings)
         public bool WhitespaceAfterSeparator { get; set; }
         public bool IgnoreOneLineBlock { get; set; }
         public bool AlignPropertyValuePairs { get; set; }
+        public bool UseCorrectCasing { get; set; }
 
 
         /// <summary>
@@ -260,6 +261,9 @@ private Hashtable GetCustomPSSASettingsHashtable(int tabSize, bool insertSpaces)
                         {"Enable", true},
                         {"CheckHashtable", AlignPropertyValuePairs}
                     }},
+                    {"PSUseCorrectCasing", new Hashtable {
+                        {"Enable", true}
+                    }},
                 }}
             };
         }