Add phpcs and phpunit config

phpcs.xml.dist

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ruleset name="SilverStripe">
+	<description>CodeSniffer ruleset for SilverStripe coding conventions.</description>
+
+    <rule ref="Generic.Arrays.DisallowLongArraySyntax" />
+
+	<!-- base rules are PSR-2 -->
+	<rule ref="PSR2" >
+		<!-- Current exclusions -->
+		<exclude name="PSR1.Methods.CamelCapsMethodName" />
+		<exclude name="PSR1.Files.SideEffects.FoundWithSymbols" />
+		<exclude name="PSR2.Classes.PropertyDeclaration" />
+		<exclude name="PSR2.ControlStructures.SwitchDeclaration" /> <!-- causes php notice while linting -->
+		<exclude name="PSR2.ControlStructures.SwitchDeclaration.WrongOpenercase" />
+		<exclude name="PSR2.ControlStructures.SwitchDeclaration.WrongOpenerdefault" />
+		<exclude name="PSR2.ControlStructures.SwitchDeclaration.TerminatingComment" />
+		<exclude name="PSR2.Methods.MethodDeclaration.Underscore" />
+		<exclude name="Squiz.Scope.MethodScope" />
+		<exclude name="Squiz.Classes.ValidClassName.NotCamelCaps" />
+		<exclude name="Generic.Files.LineLength.TooLong" />
+		<exclude name="PEAR.Functions.ValidDefaultValue.NotAtEnd" />
+	</rule>
+</ruleset>

phpunit.xml.dist

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+<phpunit bootstrap="vendor/silverstripe/framework/tests/bootstrap.php" colors="true">
+	<testsuite name="Default">
+		<directory>tests/</directory>
+    </testsuite>
+    <filter>
+        <whitelist addUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">src/</directory>
+            <exclude>
+                <directory suffix=".php">tests/</directory>
+            </exclude>
+        </whitelist>
+    </filter>
+</phpunit>