Simplify StockMarket (C#) folder structure

83_Stock_Market/csharp/StockMarket.sln

@@ -1,9 +1,9 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 16
-VisualStudioVersion = 16.0.31321.278
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.32014.148
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Game", "Game.csproj", "{BADD262D-D540-431F-8803-2A6F80C22033}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "StockMarket", "StockMarket.csproj", "{B4C15C31-EB2D-4AAF-8380-5F2EBC0DD9D0}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -11,10 +11,10 @@ Global
 		Release|Any CPU = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{BADD262D-D540-431F-8803-2A6F80C22033}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{BADD262D-D540-431F-8803-2A6F80C22033}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{BADD262D-D540-431F-8803-2A6F80C22033}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{BADD262D-D540-431F-8803-2A6F80C22033}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B4C15C31-EB2D-4AAF-8380-5F2EBC0DD9D0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B4C15C31-EB2D-4AAF-8380-5F2EBC0DD9D0}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B4C15C31-EB2D-4AAF-8380-5F2EBC0DD9D0}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B4C15C31-EB2D-4AAF-8380-5F2EBC0DD9D0}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE