[style] whole: add editorconfig file (live formatting rules)

.editorconfig

+# EditorConfig is awesome: http://EditorConfig.org
+# top-most EditorConfig file
+root = true
+# Unix-style newlines with a newline ending every file
+[*]
+end_of_line = lf
+trim_trailing_whitespace = true
+indent_style = space
+indent_size = 4
+charset = utf-8

Cargo.lock

@@ -361,7 +361,7 @@ dependencies = [
 
 [[package]]
 name = "durs"
-version = "0.1.0-a1"
+version = "0.1.1-a1"
 dependencies = [
  "duniter-core 0.1.0-a0.1",
  "durs-tui 0.1.0-a0.1",