logback: add duplicate exception filter

This only applies to marked logged messages for overlay rendering and event subscribers, which are common sources of exceptions in 3rd party plugins

runelite-client/src/main/resources/logback.xml

@@ -24,6 +24,8 @@
  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 -->
 <configuration scan="true">
+    <turboFilter class="net.runelite.client.util.DeduplicationFilter"/>
+
     <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
         <encoder>
             <Pattern>%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg%n</Pattern>