Addition of .editorconfig

.editorconfig

@@ -0,0 +1,34 @@
+# -*- coding: utf-8 -*-
+
+root = true
+
+[*]
+indent_style = space
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+charset = utf-8
+
+# Python files
+[*.py]
+indent_size = 4
+# isort plugin configuration
+known_first_party = flask_security
+multi_line_output = 2
+default_section = THIRDPARTY
+
+# RST files (used by sphinx)
+[*.rst]
+indent_size = 4
+
+# CSS, HTML, JS, JSON, YML
+[*.{css,html,js,json,yml}]
+indent_size = 2
+
+# Matches the exact files either package.json or .travis.yml
+[{package.json,.travis.yml}]
+indent_size = 2
+
+# Dockerfile
+[Dockerfile]
+indent_size = 4