EditorConfig added

Author: hvanbakel

.editorconfig

@@ -0,0 +1,5 @@
+[*]
+indent_style = tab
+tab_width = 4
+charset = utf-8
+trim_trailing_whitespace = true

Project2015To2017.sln

@@ -1,12 +1,17 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
-VisualStudioVersion = 15.0.26430.6
+VisualStudioVersion = 15.0.27130.0
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Project2015To2017", "Project2015To2017\Project2015To2017.csproj", "{04DF2706-B59A-4BB5-ADA8-97F036104CC0}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Project2015To2017Tests", "Project2015To2017Tests\Project2015To2017Tests.csproj", "{1AF63B37-E57F-41F1-B34F-177DBC927D97}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{5897C612-2D68-4B30-875D-4D10D387219F}"
+	ProjectSection(SolutionItems) = preProject
+		.editorconfig = .editorconfig
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -25,4 +30,7 @@ Global
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {23B4DBC6-9379-43AE-BC12-3BD4BEA6B4F6}
+	EndGlobalSection
 EndGlobal