add .editorconfig definition

This is a editor agnostic configuration file to specify the
indentation style for the project. It is supported by both Emacs and
Vim as well as some other inconsequential editors.

Signed-off-by: Alex Bennée <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>

Author: stsquad

.editorconfig

@@ -0,0 +1,15 @@
+# EditorConfig is a file format and collection of text editor plugins
+# for maintaining consistent coding styles between different editors
+# and IDEs. Most popular editors support this either natively or via
+# plugin.
+#
+# Check https://editorconfig.org for details.
+
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+indent_style = tab
+indent_size = 8