[rygel] Add .editorconfig

[Jens Georg <jensgeorg src gnome org>]

commit 8cbdeb727152a1a345a95b43c3fb3fca9ae7af74
Author: Jens Georg <mail jensge org>
Date:   Mon Jan 14 14:18:34 2019 +0100

    Add .editorconfig

 .editorconfig | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
---
diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 00000000..94dc769c
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,16 @@
+# https://editorconfig.org
+
+root = "true"
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.{c,h,vala}]
+indent_style = space
+indent_size = 4
+
+[*.xml]
+indent_style = space
+indent_size = 2