Add .editorconfig

Author: augustoproiete

.editorconfig

@@ -0,0 +1,17 @@
+# EditorConfig is awesome: http://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+end_of_line = crlf
+trim_trailing_whitespace = true
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+
+[*.{proj,props,sln}]
+indent_style = tab
+
+[*.{nuspec,csproj,targets,ps1}]
+indent_size = 2