Allow customizing logback config

Author: LEDfan

src/main/resources/logback.xml

@@ -1,4 +1,4 @@
-<configuration debug="false">
+<configuration debug="false" scan="true" scanPeriod="30 seconds">
 
     <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
         <encoder>
@@ -31,4 +31,6 @@
         <appender-ref ref="STDOUT"/>
     </logger>
 
+    <include optional="true" file="/opt/shinyproxy-operator/logback.xml"/>
+
 </configuration>