edssharp: use the basename of the argv0 for the usage output (#178)

The code was hardcoded to EDSEditor but the compiled code was
EDSSharp and so just cleanup the code to handle that case

Before:
Usage: EDSEditor --infile file.[xdd|eds] --outfile [valid output file] \
                 [OPTIONAL] --type [exporter type]

After:
Usage: EDSSharp --infile file.[xdd|eds] --outfile [valid output file] \
                [OPTIONAL] --type [exporter type]

Signed-off-by: Charles Hardin <charles.hardin@redoxblox.com>

Author: ckhardin

EDSSharp/Program.cs

@@ -174,7 +174,8 @@ static ExporterDescriptor FindMatchingExporter(string outpath, string outType)
 
         static void PrintHelpText()
         {
-            Console.WriteLine("Usage: EDSEditor --infile file.[xdd|eds] --outfile [valid output file] [OPTIONAL] --type [exporter type]");
+            string name = Path.GetFileNameWithoutExtension(Environment.GetCommandLineArgs()[0]);
+            Console.WriteLine($"Usage: {name} --infile file.[xdd|eds] --outfile [valid output file] [OPTIONAL] --type [exporter type]");
             Console.WriteLine("The output file format depends on --outfile extension and --type");
             Console.WriteLine("If --outfile extension matcher one exporter then --type IS NOT needed");
             Console.WriteLine("If --outfile extension matcher multiple exporter then --type IS needed");