Update Graph_database.sln

Author: shemaU2K

Graph_database.sln

@@ -3,7 +3,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.14.36616.10 d17.14
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Graph_database", "Graph_database.csproj", "{04A0130F-7E92-4234-BDC6-F0B0DABDBBE6}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Graph_database", "Graph_Database_WPF.csproj", "Graph_database.csproj", "GraphDatabaseTests.csproj", "{04A0130F-7E92-4234-BDC6-F0B0DABDBBE6}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -23,3 +23,4 @@ Global
 		SolutionGuid = {AE780F86-0CCC-49FC-851C-3A65D075C1BD}
 	EndGlobalSection
 EndGlobal
+