Revert "Removed ruleset.xml"

This reverts commit ca77c59.

Author: fulminazzo

.codacy.yml

@@ -0,0 +1,12 @@
+<ruleset name="quickstart"
+         xmlns="http://pmd.sourceforge.net/ruleset/2.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 https://pmd.sourceforge.io/ruleset_2_0_0.xsd">
+    <description>PMD Rules</description>
+
+    <rule ref="category/java/design.xml/NPathComplexity">
+        <properties>
+            <property name="reportLevel" value="150" />
+        </properties>
+    </rule>
+</ruleset>