Add logging configuration files for JUL, Log4j and SLF4J to the Spring Boot Actuator Sample application.

spring-geode-samples/boot/actuator/src/main/resources/java-util-logging.properties

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+# java.util.logging (JUL) configuration
+
+org.apache=ERROR
+org.springframework=ERROR

spring-geode-samples/boot/actuator/src/main/resources/log4j2-test.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="error">
+
+	<Appenders>
+		<Console name="Console" target="SYSTEM_OUT">
+			<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{1.} - %msg%n"/>
+		</Console>
+		<File name="File" fileName="build/logs/spring-test.log">
+			<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{1.} - %msg%n"/>
+		</File>
+		<Null name="nop"/>
+	</Appenders>
+
+	<Loggers>
+		<Logger name="org.apache" level="error"/>
+		<Logger name="org.springframework" level="error"/>
+		<Root level="error">
+			<AppenderRef ref="Console"/>
+			<!--AppenderRef ref="File" /-->
+		</Root>
+	</Loggers>
+
+</Configuration>

spring-geode-samples/boot/actuator/src/main/resources/logback.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<configuration debug="false">
+
+	<statusListener class="ch.qos.logback.core.status.NopStatusListener"/>
+
+	<appender name="console" class="ch.qos.logback.core.ConsoleAppender">
+		<encoder>
+			<pattern>%d %5p %40.40c:%4L - %m%n</pattern>
+		</encoder>
+	</appender>
+
+	<logger name="ch.qos.logback" level="${logback.log.level:-ERROR}"/>
+
+	<logger name="org.apache" level="${logback.log.level:-ERROR}"/>
+
+	<logger name="org.springframework" level="${logback.log.level:-ERROR}"/>
+
+	<root level="${logback.log.level:-ERROR}">
+		<appender-ref ref="console"/>
+	</root>
+
+</configuration>