Add ext files to sln.

CAP.sln

@@ -9,7 +9,10 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "test", "test", "{C09CDAB0-6
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{57A8A8E5-5715-41BF-A0A6-46B819933FBC}"
 	ProjectSection(SolutionItems) = preProject
+		.gitignore = .gitignore
 		CAP.vssettings = CAP.vssettings
+		LICENSE = LICENSE
+		README.md = README.md
 	EndProjectSection
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Shared", "Shared", "{9E5A7F49-8E31-4A71-90CC-1DA9AEDA99EE}"