Apply standard Jackson2ObjectMapperBuilder config via a customizer

This commit builds on the new abstraction introduced in 2a0b8a7 by
applying the standard JacksonProperties-based
Jackson2ObjectMapperBuilder configuration via a customizer.

It also applies some polishing to the original contribution:

 - Code has been formatted
 - Logic that applies the customizers has moved to be alongside the code
   that creates the builder
 - Logic that explicitly sorted the customisers has been removed as
   they will be sorted automatically prior to injection

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/jackson/Jackson2ObjectMapperBuilderCustomizer.java

@@ -17,6 +17,7 @@
 package org.springframework.boot.autoconfigure.jackson;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
+
 import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
 
 /**
@@ -29,9 +30,9 @@ import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
  */
 public interface Jackson2ObjectMapperBuilderCustomizer {
 
-    /**
-     * Customize the jacksonObjectMapperBuilder.
-     * @param jacksonObjectMapperBuilder the jacksonObjectMapperBuilder to customize
-     */
-    void customize(Jackson2ObjectMapperBuilder jacksonObjectMapperBuilder);
+	/**
+	 * Customize the jacksonObjectMapperBuilder.
+	 * @param jacksonObjectMapperBuilder the jacksonObjectMapperBuilder to customize
+	 */
+	void customize(Jackson2ObjectMapperBuilder jacksonObjectMapperBuilder);
 }

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/jackson/JacksonAutoConfigurationTests.java

@@ -527,7 +527,8 @@ public class JacksonAutoConfigurationTests {
 		public Jackson2ObjectMapperBuilderCustomizer customDateFormat() {
 			return new Jackson2ObjectMapperBuilderCustomizer() {
 				@Override
-				public void customize(Jackson2ObjectMapperBuilder jackson2ObjectMapperBuilder) {
+				public void customize(
+						Jackson2ObjectMapperBuilder jackson2ObjectMapperBuilder) {
 					jackson2ObjectMapperBuilder.dateFormat(new MyDateFormat());
 				}
 			};