Add Scrutinizer configuration

.scrutinizer.yml

@@ -0,0 +1,23 @@
+filter:
+  excluded_paths: [tests/*]
+
+checks:
+  php:
+    remove_extra_empty_lines: true
+    remove_php_closing_tag: true
+    remove_trailing_whitespace: true
+    fix_use_statements:
+      remove_unused: true
+      preserve_multiple: false
+      preserve_blanklines: true
+      order_alphabetically: true
+    fix_php_opening_tag: true
+    fix_linefeed: true
+    fix_line_ending: true
+    fix_identation_4spaces: true
+    fix_doc_comments: true
+
+tools:
+  external_code_coverage:
+    timeout: 600
+    runs: 3