chore: Add .editorconfig

.editorconfig

@@ -0,0 +1,20 @@
+# EditorConfig is awesome: https://editorconfig.org
+
+root = true
+
+# Default settings for all files
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+# Settings for Go files
+[*.go]
+indent_style = tab
+indent_size = 4
+
+# Settings for Bash scripts
+[{*.sh,docker-pussh}]
+indent_style = space
+indent_size = 4