aadd first files based on caddy-filemanager

Former-commit-id: 20baeeb41a9555cefc3b31b495e24e907736c443

.editorconfig

@@ -0,0 +1,18 @@
+# EditorConfig is awesome: http://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+# Unix-style newlines with a newline ending every file
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+# 4 space indentation
+[*.go]
+indent_style = tab
+indent_size = 4