Add Git configuration to project

Tooling.sln

@@ -1,4 +1,3 @@
-
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.27703.2042
@@ -7,6 +6,7 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "steeltoe", "steeltoe\steelt
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{AE726098-1F00-4674-A260-0E82339152DA}"
 	ProjectSection(SolutionItems) = preProject
+		.gitignore = .gitignore
 		LICENSE = LICENSE
 		README.md = README.md
 	EndProjectSection