Config file cleanup (#42)

- Remove outdated configs
- Move phpcs to .dist
- Update phpcs configs

Author: Firehed

.arcconfig

@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<ruleset>
+    <arg name="extensions" value="php"/>
+    <arg name="colors"/>
+    <arg value="p"/> <!-- progress -->
+    <arg value="s"/> <!-- show sniff error codes -->
+
+    <!-- Default paths to cover -->
+    <file>src</file>
+    <file>tests</file>
+
+    <rule ref="PSR12"/>
+</ruleset>